Hi, Yep, I was diagnosed with an underactive thyroid about 4 and half years ago when I found there was nothing in the tank after 5 min of gentle jogging, put on 75mcg Levo then upped to 100mcg. Was well for about 18 months, could do a good 50min run without too much of a problem. Than put on Statins which was the worst thing ever and absolutely crippled me and took myself off them after about 1 year.
Things picked up again quickly and I soon regained my energy and strength, back to the gym 5-6 times a week, spin and circuit training plus some weights. A couple of months later I noted some hip pain when on the treadmill then muscle ache in the rear of the thighs, then general loss of stamina until I had to give up the classes, also suffering from lack of VitD, dizzyspells, weight gain and constipation, not to mention other stuff. Seen several doctors at my GP practice and they treat all my ailments individually and not as a symptom of my thyroid.
I'm getting a private blood test next Monday to test my T3 and Peroxidase Antibodies. I'm preempting a low T3, due to whatever reason and ordered some Armour 1 grain to kick off with. I'm praying this is going to be the answer to my problems. What I have learnt from this process is that you will get little help from your GP or NHS unless you are very lucky.
Good luck with your symptoms though.