What Causes Radiating Pain In Upper Abdomen Between The Rib Cage And Back?

Question : I have a doctor but lately I have been through some wierd things. I was in the hospital with sepsis for a week. Got out and came home with Norwegian Scabies after about four weeks out of the hospital. It took four weeks for someone to tell me that was what was wrong with me and now I have this pain that starts in the upper part of my stomach right between the middle of the rib cage. I know this could be a million different things but the problem with this is that I am not a big eater so I can't seem to put a finger on what it could be. It starts with a bit of a warning like I can feel it coming on ... then it radiates pain from the front to the back, I break out in a sweat, get weak in my legs as I try to get to the Gaviscon (like tums only stronger over the counter) this takes about four or five minutes to help make the pain go away but until that time I am completely absorbed in the pain. It sounds silly but it definitely is not something I have ever experienced. I had this before the sepsis but not really long before and I am not sure it has anything to do with it since in the hospital this did not affect me even one time. I do not have a gall bladder or appendix, I used to get heartburn every once in a while but off and on and nothing to mention. Just wanted to get an idea of what organ ... organs are in this location that may cause this sort of pain. I checked into the pancrea, just can't image a indigestion medicine helping that problem. It seems to happen more early evening or later. It's the complete pain that takes over me that is my concern because the first thought was that it was a heart attack. If that was the case then I have had several and should be dead by now. Any help would be appreciated. Thank you.