I'm 56 yr old female weighing 240 & have started eating healthly & do light water aerobics & indoor short power walks. My b/p has never been really bad, but doc put me on 10 mg of Lisenipril because it was sometimes elevated. For the last few days, I have woke up a little dizzy when taking b/p it is running 116/77,108/65,115/66, 107/69 this is check all thru the day. Yesterday I just took 1/2 Lis. and it still was lower than normal.?