At rest my blood pressure is 110-115 over 80, and my heart rate is 100-120. I'm only 16, and I used to regularly (5-6 times a week) abuse diphenhydramine. I did it for about 3 months, but now I have quit, and I'm never going to do anything like that again. I was wondering if it's possible that I did this to myself, and if I did if its reversible.