Migraine
"I had MVA over 20 years ago leaving me w  chronic migraines complete w nausea/ vomit, but I get the diarrhea issue frequently as well. They often begin w frequent urination. 
Amerge helps usually in first 10 minutes (only occasionally need the second dose In a day) I still usually need to relax in dark calm area but symptoms are more manageable. One problem is the dr usually only order 9/month which is not enough for a CHRONIC migrainer"