Hullo there, Mariola, and welcome.
I can't help wondering if part of your problem is because you
need to gain a little more weight. At 5'7, you were clearly very underweight at 110 pounds, so your body grabbed at whatever you gave it in order to gain those much needed pounds.
Yes, you do seem to have some thyroid problems, but I suspect your problems are deeper than that. Have you ever been treated for an eating disorder?
My suggestion for you would be to start eating low carb, making sure to get adequate amounts of protein. Two eggs a day is nowhere near adequate.
You may well gain a bit more, but that is because that will be healthy for you. At 126 pounds, you are at the very lowest end of the normal weight spectrum, so to gain a few pounds will not hurt you. I think it may well help your general health enormously.
I wish you all the best, especially good health.
Rosebud