For the past two weeks I have been experiencing recurrent symptoms of dizziness caused by a drop in blood pressure. I just checked my blood pressure after feeling fatigued and dizzy and it came up to 110/65. I read that diabetes may be a factor however I recently checked my A1C and it came out much lower than last year. This year my A1C came out at 5.2 last year it was 5.7 range (4.0-6.0) my blood sugar was 100 this time around. Therefore I doubt it's due to diabetes, does hypothyroidism cause blood pressure? I haven't checked my thyroid levels yet but will check them this week. I do have TSH from two weeks ago which was 1.80 range (0.5 - 5.0). One thing to add is that I have added T3 (25 mcg) medication two months ago and haven't increased yet I take 88 mcg Levothyroxine and 25 mcg t3 (cynomel Mexican T3). If anyone has any advice or information on what I should do that would be great!!