Been on Lisinopril for a month and wake up at night and can't get back to sleep. I always sleep great. On the weekends I used to be able to sleep till noon if I want. But Now. Felt like I was having some kind of panic attacks. My doctor put me on sleeping pills. Now I wake up and hour or two before I need to and feel like I drank a pot of coffee. I am going to stop taking Lisinopril for a couple of days and call my doctor...