Could be a gluten reaction. There may have been gluten in the hash browns as most have flour, you definately have to ask before ordering. What I tell the waitperson is that I am allergic to wheat products, they usually understand that. What ever I pick off the menu I always have them ask the cook, just to be sure. Because something you would think should be safe may not be. Better to ask.
My pain ended Saturday, five days later. My pain is also all over in the stomach area. Up high, under the ribs and right below my belly button. It is such a relief when it ends, I can get back to my life. I'm actually thinking now that I got contaminated from the toaster over. Just something I happened to read in an article about celiac's. So as a precaution, my husband and I will use seperate toester from now on.
As far as the motrin, I think next time - hope it's a long time from now - I will try tylenol for the pain.