A week ago, I experienced abdominal pain while swimming , it immediately followed with sweating where I was soaking wet. I felt weak and could not moved for 2 hours, almost passed out. I had similar symptoms about 4 times since last year. I went to emergency the first time when the symptoms associated with chest pain, but everything checked out ok, no heart problems. Acid reflux was suspected, but no specific diagnosis. Do I need to take any follow up actions? Thanks