Very low body temperature?: Basically I have... - Thyroid UK

Thyroid UK

142,309 members167,676 posts

Very low body temperature?

OudMood profile image
4 Replies

Basically I have noticed for the last few years that my basal body temperature is very low and I was curious :

- is it normal?

- why is mine so low?

It’s not quite low to be hypothermia but is also VERY much lower than “normal” and I feel fine.

My normal temperature is between 35.3°C - 35.6°C ( which is 95.5°F - 96°F).

Normal body temperature is usually considered to be around 36.5°C - 37°C

Which is 97.7°F - 98.6°F

This came relevant recently as I had a fever that effectively reached 39°C (102.2°F) but felt like 40° +(104°F).

But to be fair. I notice that even if I only reach 36.8-37° it personally feels like a low degree fever for me (despite low grade fever being 37.5°C).

Should I mention this to the GP? I don’t want to waste their time..? 😅😅😅

Written by
OudMood profile image
OudMood
To view profiles and participate in discussions please or .
4 Replies
bantam12 profile image
bantam12

Depends what normal for you, my normal has always been around 35.

OudMood profile image
OudMood in reply tobantam12

I think my normal prior to noticing my now low temp was around 36.3-36.6 like most people?

This is new, but not very recent like mentioned it’s been like that maybe for a couple of years.

SlowDragon profile image
SlowDragonAdministrator

Blue Horizon tests on 22/09/2021

TSH 5.64 (0.27-4.2)

T4 total 89 (66-181)

FT4 15.8 (12-22)

FT3 4.73 (3.1-6.8)

TPO ab 20 (<34)

TG ab 174 (<115) - this test was NOT done at the lowest of my symptoms. So it’s likely it was higher before..

Magnesium 0.99 (0.7-1.0)

Cortisol 140 (166-507) - taken at 7-8am

How much levothyroxine are you currently taking

50mcg is only a STARTER dose

When were thyroid and vitamin levels last tested

Make sure you test as early as possible in morning before eating or drinking anything other than water and last dose levothyroxine 24 hours before test….

Are you lactose intolerant that you are on Teva brand levothyroxine

ESSENTIAL to regularly retest vitamin D, folate, ferritin and B12

What vitamin supplements are you currently taking

High TG antibodies confirms autoimmune thyroid patients

Have you had coeliac blood test done

Are you on, or tried absolutely strictly gluten free diet

Hidden might pop along re low cortisol

Have you considered doing Cortisol and DHEA test via Regenerus

regeneruslabs.com/products/...

cdn.shopify.com/s/files/1/0...

SlowDragon profile image
SlowDragonAdministrator

Looking at previous posts

You have type one diabetes - autoimmune

PCOS strongly linked to autoimmune thyroid disease

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.

In U.K. medics never call it Hashimoto’s, just autoimmune thyroid disease (and they usually ignore the autoimmune aspect)

Not what you're looking for?

You may also like...

low body temperature

is there a connection to low body temperature and thyroid function and fibromyalgia?  I am always...
Angeren14 profile image

Basal Temperature

Hello, I've read on the Thyroid UK website that when doing the basal temperature test, readings...
Martina profile image

How to tell you have a fever with low nasal body temperature

How are people like me with low body temperatures such is mine which is usually about 36.2 supposed...
sobs1962 profile image

Body Temperature – Thyroid, Adrenals, or Something Else?

I thought this article was worth reading. Title as above. Link :...
humanbean profile image

Low body temperature

I have hypothyroidism currently on 100mcg levothyroxine for past year . My body temperature is 35.9...

Moderation team

See all
SlowDragon profile image
SlowDragonAdministrator
PurpleNails profile image
PurpleNailsAdministrator
Jaydee1507 profile image
Jaydee1507Administrator

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.