peripheral neuropathy: has anyone with this... - Thyroid UK

Thyroid UK

141,271 members166,540 posts

peripheral neuropathy

CAK1 profile image
CAK1
20 Replies

has anyone with this wretched condition been told it could be because of overdosing on thyroxine?

Written by
CAK1 profile image
CAK1
To view profiles and participate in discussions please or .
Read more about...
20 Replies
greygoose profile image
greygoose

More like under-dosing! But, can also be caused by low B12.

Jaydee1507 profile image
Jaydee1507Administrator

What were your latest results to make them say you are overdosing (You probably aren't!)?

Low B12 and even folate can cause nerve symptoms.

CAK1 profile image
CAK1 in reply toJaydee1507

August both those said to be OK

Jaydee1507 profile image
Jaydee1507Administrator in reply toCAK1

Gp's or any doctor are not trained in vitamin levels. You need to ask for a copy of the results and post them here. Your result needs to be in the upper quarter of the range. Your GP would say it's OK if it's in bottom quarter or only just in range. This is important.

SlowDragon profile image
SlowDragonAdministrator

When hypothyroid and on levothyroxine low vitamin D, folate, ferritin or B12 are extremely common

It’s also much more common to have low vitamin levels as we get older

What vitamin supplements are you currently taking

How much levothyroxine are you currently taking

Do you always get same brand levothyroxine at each prescription

Bloods should be retested 6-8 weeks after each dose change or brand change in levothyroxine

 

For full Thyroid evaluation you need TSH, FT4 and FT3 plus both TPO and TG thyroid antibodies tested.

Very important to test vitamin D, folate, ferritin and B12 at least once year minimum

About 90% of primary hypothyroidism is autoimmune thyroid disease, usually diagnosed by high thyroid antibodies 

Autoimmune thyroid disease with goitre is Hashimoto’s

Autoimmune thyroid disease without goitre is Ord’s thyroiditis. 

Both are autoimmune and generally called Hashimoto’s.

Low vitamin levels are extremely common when hypothyroid, especially with autoimmune thyroid disease (Hashimoto’s or Ord’s thyroiditis)

20% of autoimmune thyroid patients never have high thyroid antibodies and ultrasound scan of thyroid can get diagnosis 

In U.K. medics hardly ever refer to autoimmune thyroid disease as Hashimoto’s (or Ord’s thyroiditis)

Recommended on here that all thyroid blood tests early morning, ideally just before 9am and last dose levothyroxine 24 hours before test 

This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip)

Private tests are available as NHS currently rarely tests Ft3 or all relevant vitamins

List of private testing options and money off codes

thyroiduk.org/getting-a-dia...

Medichecks Thyroid plus antibodies and vitamins

medichecks.com/products/adv...

Blue Horizon Thyroid Premium Gold includes antibodies, cortisol and vitamins

bluehorizonbloodtests.co.uk...

CAK1 profile image
CAK1 in reply toSlowDragon

Thanks am goingto get tested as you advise

Sandiij profile image
Sandiij

Ive been hypothyroid for 30 years. Recently developed peripheral neuropathy and vit b12 deficiency is probably the cause. Now on b12 injections and neuropaethy a little improved. Still there but the intense burning in toes has gone.

CAK1 profile image
CAK1 in reply toSandiij

Thank you

Are you in Uk?

What kind of B12 test did you do?

My dr says levels OK

SlowDragon profile image
SlowDragonAdministrator in reply toCAK1

what are your most recent vitamin results

Folate, B12, ferritin and vitamin D ?

optimal vitamin levels are

Vitamin D at least over 80nmol

Serum B12 at least over 500

Active B12 at least over 70

Folate and ferritin at least half way through range

B12 range in U.K. is too wide

Interesting that in this research B12 below 400 is considered inadequate 

healthunlocked.com/thyroidu...

CAK1 profile image
CAK1 in reply toSlowDragon

serum Vit B12 589ng/L (130.0-800.0)no other, folate 8.1, (4.0-27)ferritin102 (13.0-150). No D thank you

SlowDragon profile image
SlowDragonAdministrator in reply toCAK1

folate is low especially if you’re supplementing

What vitamin supplements are you currently taking

You could test vitamin D on its own

Test twice yearly via NHS private testing service when supplementing 

vitamindtest.org.uk

CAK1 profile image
CAK1 in reply toSlowDragon

so appreciate your concern

Am not taking folate thought I was.

Have been taking B12 1000ug, Magnesium 375mg,zinc 15mg

Recently for the peripheral neuropathy, an American formula Nerve Renew per day RALA 600 mg, D 50mg, B2 16 mg, B6 16 mg, B12( asmethylcobalamin), Benfotiamine 12 mg,

Plus 112 thyroxin

Am prediabetic

Sandiij profile image
Sandiij in reply toCAK1

was just a serum b12 test. Result was 107 ng/L range 145-910ng/L. Am in the uk. Also vitd insfficient 38.7 nmol/L range 50-250nmol/L.

Marz profile image
Marz in reply toSandiij

How often do you have a B12 injection ? Arr you supplementing folate too ?

Sandiij profile image
Sandiij in reply toMarz

Following my 6 loading doses im on 12 weekly injections. I take 800 ug folic acid ( self prescibed ) as it was in range but low.

Marz profile image
Marz in reply toSandiij

How is your D deficiency being treated ? Also neurological issues should be treated more than 3-monthly.

Sandiij profile image
Sandiij in reply toMarz

My vitd is classed as insufficiency so im not being treated by gp. Am taking vit d3 4000iu and vitkmk47 100 and magnesium glycinate 250mg. Will be retesting vit d in november. I know b12 should be more regular for neuro symptoms so am planning to self inject.

CAK1 profile image
CAK1

I don’t have injections. Am supplementing folate

mourneadventurer profile image
mourneadventurer

Perhaps consider Vitamin B1 in the form of benfotamine for peripheral neuropathy and check levels of vitamin D which influences insulin resistance. Vitamin B1 gets used up by high blood sugar.

serenfach profile image
serenfach

Both my feet are pretty numb, peripheral neuropathy diagnosed years ago. Absolutely nothing done. When I mention it to the GP, he/she ignores me.

I can walk on lego without screaming!

Not what you're looking for?

You may also like...

Peripheral Neuropathy

My GP is the only one treating me these days. Thankfully we have sorted my T3 dose so everything is...
beaton profile image

Peripheral Neuropathy

Does anyone know if there is a link between peripheral neuropathy and hypothyroidism? I have seen...
Citta profile image

Peripheral Neuropathy

Hi, diagnosed with hypothyroidism several years ago and then coeliac disease during covid. Long...
lauram1978 profile image

Peripheral Neuropathy

Numb toe on going for weeks. Put it down to my shoes. Left hand weakness but put it down to a...
Hpbr profile image

Hypothyroid / Peripheral Neuropathy

Just wondered if there could be a link between these two things. I have been hypothyroid for nine...
Twitchen profile image

Moderation team

See all
helvella profile image
helvellaAdministrator
SlowDragon profile image
SlowDragonAdministrator
PurpleNails profile image
PurpleNailsAdministrator

Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.

Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.