Thyroid disease and what medication/dosage
that works to alleviate symptoms
is just as individual as you are.
Barb's right when she said the healing takes time. I think you are doing the right thing, going up slowly and keeping track of how you feel, but try to relax a little, even though I know that's hard to do when you don't feel well. I wish I'd found this forum years ago, it's been very helpful.
You aren't alone, there are (sadly) LOTS of us out here and we know how you feel.