Lisinopril Speech Problem, Speech Issues, Cardiologist, Sensitivity to Sunlight, Stroke

I'm a 55 year old male. I started taking Lisinopril about two years ago at the 5mg level. In April , my doctor increased it to 20mg. I had a sensitivity to sunlight at the 5mg dose. After about two weeks on the new dosage I was having speech issues. I knew what I wanted to say, but the words wouldn't come out.I had to form the words in my mind to speak.At the time I thought I had a small stroke. I went to my cardiologist as the first step. He sent me to several specialists. I've had 2 cat scans, an MRI,EKG. sonic grams.and other tests. They found no cause for the speech problem. Recently I connected the dose increase to the speech problem. I'm waiting to see my doctor to discuss the issue. Has anyone had similar problems with Lisinopril?