Wow. You and I are in the same boat! I am also on 1500mg of Met (since October). I recently (about 6 weeks ago) started losing so much hair that I panicked and ran to the doctor. Although I'm only 31, my hair is mostly grey, too (but I color it)
I also have similar symptoms of being cold a lot, especially my hands and feet. When I first started Met, it did wonders for my energy level, but lately, I am exhausted all day, but especially in the afternoon. I also have a lot of trouble concentrating. In meetings at work, people are talking and I suddenly realize I haven't been listening at all. Very frustrating!
Anyway, my doctor did a thyroid test, and initally said it was "fine". But, he changed his tune and called me back, and said he wants me on a six week trial of thyroid medication to give my thyroid function a "boost". I actually posted about this in another section to get some opinions on this treatment.
Even though you don't go back to the doctor for six months, you should call them and ask them to fax your results to you. I've found it very helpful to keep copies of my "PCOS" bloodwork, so I can monitor my progess.
So, sorry I don't have an answer for you, but just wanted to let you know that my doctor is treating me for slight hypothyroid based on symptoms that are similar to what you described.
Good luck!
Amanda
__________________ Me (32) DH (31)
DD (4) DS (1)
DX 7/2006
My 2007 Resolution: EXERCISE! (Please encourage me!)
"If we meet no gods, it is because we harbor none." Ralph Waldo Emerson |