This is just a shot in the dark, but I suffer a multitude of problems after eating ANY food that contains a dairy product. It has reached the point where just butter on one piece of toast starts it all. It couldn’t hurt to avoid milk, cheese, butter, etc., for a couple weeks to see if this helps. I use lactose-free milk, which seems to be all right. Last week I had “real” mashed potatoes at a buffet lunch. Sure enough, the miseries set in about 20 minutes later. I just didn’t think about the fact that they probably used milk in the mashed potatoes.