I get that dry cough too.
I don't take an ACE inhibitor though, I don't think. Just Lopressor, Dyazide/Maxzide, Lipitor and aspirin for the heart issues.
For me it started a couple of years ago one summer after pushing myself too hard. I start coughing out of the blue to the point of either just about passing out or vomiting mucus. Urgg My chest hurts and feels sunken in, pounds very hard and quivers sort of and then I'm fine till it happens again.