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How are you sitting when this happens. Is it only one leg? Is it the whole leg?
Usually when this happens it means that one of the vessels is partially occluded by the surrounding tissue/muscle. This can happen sometimes when you cross your leg, or for example if you lay your arm over a bar that partially occludes the vessel. It does mean that there is more pressure in the vessels since the blood cannot get back to the heart as easily, as long as the vessels are partially occluded like this. Usually it won't cause much harm, and the other smaller vessels around the partially occluded one will pick up some of the circulation. The leg or extremity may "fall asleep" as this is what is occurring when we have that sensation too.
This is likely harmless, but I'd still suggest you change position when you feel this, especially if your leg starts to fall asleep or becomes uncomfortable.
I hope this is helpful. If you have questions or comments please reply to this post so that I may assist you further.
I have hypothyroidism and have just had my medications increased because my tsh is 8.61, and should be around 2. Could that be causing it?
An over increase of medication to reverse the hypothyroid could potentially cause an increase in blood pressure, although I would suspect that your doctor calculated your dose carefully and that this is not the problem.
Likely it is just positional and you just happen to notice it at this time (the pulsing leg). You do not have any redness, edema, bumps or lumps, in the leg, correct? If not this is very much a benign symptoms (nothing to worry about).
Nope, none of those symptoms. I think I am just more paranoid. I often get anxious paranoid when my thyroid is out of whack
It is true that when one is hypothyroid that it can increase depressive /anxiety type symptoms (depression is sometimes misdiagnosed when actually the problem is hypothyroid, although most psychiatrist know to have the patient have this checked these days). You will continue to feel better.
Thank you for accepting my answer and the positive feed back! Enjoy your week!