Is there a link between levo and shortening men... - Thyroid UK

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Is there a link between levo and shortening menstrual cycles?

6 Replies

My latest cycle was just 16 days. 😭

I've been having alternate cycles so one will be around 25 days and the next will be shorter around 18 days. But on average they've shortened to 23 days.

I've started getting PMT and there are certain days on my cycle that I'm just exhausted, which I take to be 'normal' symptoms; I've just never had anything like it before. They're still v short (2/3days) and light.

Will my cycle length again?? I don't want another 20+ years and 2 periods every month. 😐😂

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SlowDragon profile image
SlowDragonAdministrator

Looking at previous posts you are still only on low dose levothyroxine

Presumably due next test soon. Looks like you had dose increase a month ago..

Bloods should be retested 6-8 weeks after each dose increase

Always test as early as possible in morning before eating or drinking anything other than water and last dose levothyroxine 24 hours before test

What vitamin supplements are you currently taking?

in reply toSlowDragon

Yep, new test in a week! at 8:50am

Currently take:

A b complex from Holland and Barrett

1000ug B12

200ug vit D

200ug selenium

220mg magnesium

180ug vit K2

I appreciate that things are different for everyone, I just found it disheartening that my cycles have got shorter since starting levo!

SlowDragon profile image
SlowDragonAdministrator in reply to

Which brand of vitamin B complex?

H&B own brand not recommended

Remember to stop taking vitamin B complex a week before ALL BLOOD TESTS

Which vitamin D?

No other medication or supplements at same as Levothyroxine, leave at least 2 hour gap.

Some like iron, calcium, magnesium, HRT, omeprazole or vitamin D should be four hours away

(Time gap doesn't apply to Vitamin D mouth spray)

If you normally take levothyroxine at bedtime/in night ...adjust timings as follows prior to blood test

If testing Monday morning, delay Saturday evening dose levothyroxine until Sunday morning. Delay Sunday evening dose levothyroxine until after blood test on Monday morning. Take Monday evening dose levothyroxine as per normal

in reply toSlowDragon

Blast! It is indeed the H&B own brand. What about it isn't recommended?

Vit D is Solgar.

I take Levo about 10pm after dinner around 5pm with the children! Supplements are taken throughout the day with lunch or dinner.

I will only have TSH tested by GP unfortunately but will look at getting a test done privately after Christmas. I also want an iron panel done which the GP refused.

SlowDragon profile image
SlowDragonAdministrator in reply to

supplementing a good quality daily vitamin B complex, one with folate in (not folic acid) may be beneficial.This can help keep all B vitamins in balance and will help improve B12 levels too

Difference between folate and folic acid

chriskresser.com/folate-vs-...

Many Hashimoto’s patients have MTHFR gene variation and can have trouble processing folic acid.

thyroidpharmacist.com/artic...

B vitamins best taken after breakfast

Igennus Super B is good quality and cheap vitamin B complex. Contains folate. Full dose is two tablets per day. Many/most people may only need one tablet per day. Certainly only start on one per day (or even half tablet per day for first couple of weeks)

(Cheap on Amazon)

Or Thorne Basic B is another option that contain folate, but is large capsule

If you are taking vitamin B complex, or any supplements containing biotin, remember to stop these 7 days before ALL BLOOD TESTS , as biotin can falsely affect test results

endo.confex.com/endo/2016en...

endocrinenews.endocrine.org...

B12 sublingual lozenges

amazon.co.uk/Jarrow-Methylc...

cytoplan.co.uk/vitamins/vit...

Hillwoman profile image
Hillwoman

Always wondered about this one, but never got around to researching it in detail, and now I'm post-menopausal anyway. I had low thyroid function from birth (it didn't get really bad until my teens) and one sign of this in girls is abnormally early puberty, often followed by very frequent, heavy menstruation that doesn't really settle into a lengthier 28-day pattern. If you develop hypothyroidism after puberty but before menopause the same pattern may occur, or you can go the other way, developing a longer cycle with scanty menstruation lasting only a couple of days.

One of the best doctors I ever had (now deceased) use to talk about the effects of endocrine and/or immunological disruption in women producing a state akin to a premature or false perimenopause, with the body flickering between normal and abnormal sex hormone production over many years, even decades.

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