Sorry you are feeling so rotten, I have been battling with my GP for over a year to get an increase of Levo because of feeling so rotten, I managed to get a trial increase last month and GP has agreed to keep me on it as it has made a difference, even though I am still not 100% there yet I am much better than I was 8 weeks ago. I think the reason I managed to get it is by coming on this site and learning more, it gave me ammunition and made me feel more confident in asking questions.
I also began to think my symptoms may have been adrenal as my TSH was 0.5 (range 0.3 - 5.0 I think) this is why the GP was reluctant to try the increase. after 6 weeks of taking an extra 25mcg every other day as well as my usual 125 my TSH was 0.46; I didn't feel any benefit for at least 4 weeks butt hen it started to kick in and I found I was sleeping better, the totally debilitating depression lifted and I began to think more clearly, I am hoping that I will improve even more over the next few weeks but if I don't I will be fighting for a further increase.
I just wanted to share this as I felt just as you do, despite having a low TSH that was 'normal' I was still hypo, you really need to find out your last results, when was your last test for TSH? you can ring up and ask for last results along with the lab ranges, that will help you to see if you are still a little hypo. From the sound of your initial post I very much doubt if you have had T4 and T3 tested but it would be worth asking for those too anyway.
Good luck hun