Thyroid UK

Body temperature with high outside temperature

Hi all,

first of all have to say I'm still in the process of finding the right dosage of levo, I started in november 2014. My levels are going up and down, latest results (may 2015) were TSH 0,80 (range 0,27-4,20) and FT4 14 (range 10-19). Next week I will hear what my newest results are.

I'm not feeling well and that is explainable because my levels keep going like a rollercoaster. I don't feel well with this hot temperatures outside. I never had this before (always cold), I feel really hot like I'm constantly sitting in front of a fireplace, can't seem to lose the heat and walk around and sleep with a wet cold cloth in my neck. In my country it is around 25 celsius degrees right now, last week it went up to 35 celsius. I drink only water and drink enough of it so that's not the issue.

I was thinking maybe I'm hyper but I don't feel like it, I only was hyper once and while I was constantly hot and sweating I also felt like I couldn't sit still, a nervous feeling and I kept going to the bathroom (sorry, TMI). I don't have that now. BUT I just measured my temperature and it says 37,8 celsius, do you think this is because it is hot outside or could it be my thyroid? (when hypo it never went higher than 37,2)

I will mention it next week at the doctor if it is still this bad, feeling cold all the time isn't fun but this isn't either.

6 Replies

Hello Flower3,

Have you been tested for thyroid antibodies TPOAb and TGAb?

This autoimmune disease can produce a lot of heat in the body as abundant hormones are released into the blood stream as the thyroid gland is attacked.

It is advisable to always have your blood tested at the first appointment and leave your pill until after.

TSH has a circadian rhythm and will be highest first thing in the morning.

From one flower to another.


I always get my blood tested as early as possible without levo in my system, I'm really curious what my levels are now but I will have to wait till next week.

I tested positive once for anti-TPO. I have been tested now again on anti-TPO and anti-TG and will hear that also next week.

Maybe it is a Hashimoto attack, is that what you mean? I think it is Hashimotos and that will explain my levels going like a rollercoaster.


Yes it was what I meant.

I hope you feel better soon. It's rotten going up and down like that.


I have read that sometimes our dose needs a slight adjustment if weather is very hot or very cold, i.e. reduce slightly or rise slightly.


A year after starting Levo ,this May I was in the same temperature range on holiday.

I was reinvigorated more energy than my wife unlike home. Returned home to 12-15 degrees and felt worse than before the holiday. Now as the temperature has risen I am feeling better though not as good as on holiday.

On a previous post you speculated about temperature effects and levels of Levo.

I am beginning to think I need more when the external temp. Is cooler .Unfortunately the GP would not give more last winter -more than jobs worth!

Maybe you need less in the heat.


Yes I've read that some people need more levo in winter and less in summer. Guess I will have to wait till next week to hear what my latest blood results are.


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