Blood pressure raised, GP thinks T3 is causing ... - Thyroid UK

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Blood pressure raised, GP thinks T3 is causing a problem

MrsFitz profile image

So I posted last year about my blood test results, at that point I thought I was still under medicated but my GP thinks I'm over medicated. I argued my case and didn't want to see my private Endo as I didn't think I had a problem.

I did try to reduce my T3 over the summer but within 4 weeks my brain function and mobility was severely compromised. I returned to previous levels of T3, and thought stuff my GP!

Roll onto a routine kidney test and now my GP is concerned about raised blood pressure, and citing T3. I'm really fed now, anyone else had this situation arise? I feel my GP is trying to prove a point about T3 but I also have CFS and a damaged kidney after a very bad norovirus experience

13 Replies

The only way your GP can tell if you are over medicated is by testing your T3, which I bet he hasn't done. Ask him to do that if he is so worried. Sounds like his ego is the issue here. High blood pressure can be linked to low thyroid hormones. I have CFS and I know it is sometimes difficult to work out 'what is what', in terms of symptoms. It sounds as if you know when you are optimally medicated so I would stick to your guns.


If your FT3 is within range you are not overmedicated.

Since being on T3 20mcg a day, almost a year now, my blood pressure has gone down slightly and cholesterol reduced significantly, enough to be off the statins.

When taking t3 only my blood pressure shot up. Nothing to do with overmedication and I have found through search on the forum this has happened to others, but not many. No idea why and as I was trying to clear rt3 I stayed on lowest dose I could trying for 12 weeks on t3... I made it to 11 weeks but blood pressure just kept climbing so switched back to NDT and blood pressure dropped rapidly to good within two days. Sorry I have no idea why it happened so not much help to you but I was NOT overmedicated as blood test showed .

I've had my Levothyroxine lowered by GP due to raised blood pressure which is new for me. BP has come down from high to acceptable but still not where it used to be. So not sure what's behind it. Feel very frustrated as because it's 'low enough' no further investigations.

MrsFitz profile image
MrsFitz in reply to Deeseona

But @deeseona, do you think your thyriod levels are adequately medicated?

I feel it's my on going Chronic Fatigue that is causing my blood pressure to rise

Deeseona profile image
Deeseona in reply to MrsFitz

No def not due to UK system of thyroid testing. Now reduced to 75mcgs but have never felt the benefit of Levothyroxine sadly. GP just not interested re theory of not converting to T3. What else is there to do...

PS didn't realise chronic fatigue can raise BP! Have been fatigued ever since hypothyroidism was diagnosed... It's tough isn't it?

MrsFitz profile image
MrsFitz in reply to Deeseona

I've got to be honest, I'm not sure of any of it. It's convenient for the NHS to just declare CFS. NO treatment, but seeming to deteriorate.

Next step NDT if the GP gives me any more grief. It just seems there is no support available from the medical profession

LAHs profile image
LAHs in reply to MrsFitz

Hi MrsFitz, My blood pressure (BP) went up on Levo early in my hypothyroid diagnosis and subsequent total thyroidectomy. I later (~7 years) switched to NDT and experimented with T3 only. My BP did not drop to normal but shot up even higher when I took supplemental T3. I did this in the afternoon to counteract sleepiness about 4:00pm when the T3 in the NDT had dropped off. I stopped the T3 experiments and my BP dropped a bit but never back to 120/80 mmHg, normal.

I have recently reduced my weight by 23lbs in an effort to reduce my BP but not much luck. If we had doctors who could think, that information should tell me the cause of my high blood pressure. Actually any plumber out there might be able to make a diagnosis. Any plumbers out there? What do you think? I reduced the load off the pump yet no drop in pressure. Resistance in the walls of the pipes? Blockage in the pipes?

MrsFitz profile image
MrsFitz in reply to LAHs

I love the plumber analogy, I'm married to one!

No clear answers available anywhere, it seems we are all just doing our best to keep going.

LAHs profile image
LAHs in reply to MrsFitz

Oh my gosh what a coincidence! Ask him! it's the same problem for any liquid running through pipes being driven by a pump. In humans there is a slight advantage of being able to flex the pipes a little - vascular dilation: the ability for your veins/arteries to expand/contract a little. I would really be interested in his answer.

It's all so frustrating and exhausting isn't it. Thank goodness for this forum. Good luck with it all.

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