I've been on Lisinopril for a year. I was changed over to the ge...

I've been on Lisinopril for a year. I was changed over to the generic brand just 3 months ago and am having more & more trouble. Sleeplessness is a growing problem.....just can't go to sleep and then can't stay asleep for more than 3 hrs. at a time. I've also experienced trouble with bounding heart rate. This will come on whenever it wants to. I have had a dull headache for at least 3 weeks and a great deal of pain & stiffness in the neck/shoulders area. The latest problem that I have started to experience is unstable vision. It is like looking through heat waves. This causes dizziness too. I have been listening to my heart beat rather loudly for some time now. I do have a diagnosis of fibromyalgia and have multiple joint pain. I thought I was falling apart, but because of this site I find it can all be due to taking 10 mg. po qd @ hs. I just stopped taking it last night. I need my vision. I need my health. Thanks!