When TSH is maybe a bit too low...

Hi everyone. My personal story with hypo is a bit complicated. I was officialy diagnosed 17 years ago, not a surprise since it runs in the family (both my mom and older sister have it). I did not begin to take Eutirox until February (100 mg), because of an upcoming surgery. I kept taking it everyday as prescribed, though. Last week I had TSH, FT3 an FT4 tests and I got worried because my TSH is currently at 0.01 (basically inexistent), being at 8.5 back in February. The other tests were normal, though, and I had an ultrasound recently that found nothing of concern. The thing is I've been having some symptoms during the last month or so that maybe, I think, could be related to this: headache, pressure sensation in eyes and forehead, nausea, dizziness, sensation of fainting and ocassionaly tachychardia. I have a PCP appointment tomorrow, but I would like to know if anyone else went through this situation ahd how did you manage it: lowering the dose, perhaps? Thank you!