You have several similar posts going and looking over them, I see that back in Nov, Dr Lupo answered one of your questions, saying that it appears that you may have
Graves Disease and may have become hypo as a result of anti-thyroid medication.
Your TGab, indicates Hashimoto's, but you need to have TSI tested, as well, to rule out/confirm Graves, since Hashimoto's can be characterized by periods of hyper alternating with hypo.