@ess77 Thanks a lot for your reply. Did your son experience vomiting after his trial with dilaudud? My current spell of vomiting is really weird. I can almost predict when it's going to happen. When I first wake up, I will have this strange feeling. Hard to describe. But it is not always there, But, when it is, I can almost always expect a series of "vomitus eruptus". Other days it just comes on, out of the blue, very suddenly, Then I have to literally run to the bathroom. This will often be repeated several times until there is nothing left to expel. Wish I could figure it out. Will likely have to go back to Gastro/Enterologist and see if he can figure it out.