Burned out my stomach from years of alcoholism and now it's the most sensitive angry beast there is. If I have to do a long drive or any flight at all I don't eat 24 hours before hand just so nothing will set it off. I had a doctor appointment late last year and I can't remember the exact timing, but they had told me to fast before hand. When I came in around 3 or 4 I did my physical but they told me to come back first thing the next morning for my bloodwork. I asked them why? I had been fasting since dinner last night like they had put on the sheet. They meant I was supposed to do the physical then the next night fast, because nobody would be able to handle fasting for 18 hours and what I was doing was extremely unhealthy. My doctor is obese, his nurses are obese, the receptionists are obese. He wouldn't refill my SSRI and made me cold turkey once. I will not be returning.