For the last month I had issues first thing in the morning and right before bed. My doctor already thinks I am nuts. First I had a cold then a cough that lasted a month. My issues started during the cold. It's before I eat anything in the morning. I am on a Beta blocker and the pharmacy switched generic brand. I am trying the brand name with no changes. I tried changing my diet with no changes. I use lactaid milk and use lactaid pills when I have dairy. Nothing seems to be working. Any thoughts?