I was prescribed Amitriptilyne 20 mg at bedtime for chronic headaches (also have ataxia for the past six month no causes found all mri, ct, cta scans, negatives) and have been taking it for two weeks now 1/7/2014: blood pressures and heart rates readings as follow on 1/16/2014 144/73 69; 149/69 185; 160/77 63 (L. arm) 152/89 72 8pm. 180/ 90 hr 90- 105; latest reading as of yesterday 143/81 72; 131/72 (left arm) 144/80, 61; 130/82 85; 134/75 61 Left arm); 137/76 61 Right arm); 144/80 61; this morning 1/18/2014 lying down 145/75 59 right arm; sitting 152/76 64 (left arm); 147/77 61 Also my blood sugar readings ranges from 100- 108, 120; for the past three days to 108; this morning 108 I am concerned that the medication is causing these. ( FYI I take Syntrhoid 0.05mcg every morning since may 2011 had total thyroidectomy and november 2012 total hysterectomy). Thank you