8 Years ago, for about 2 years, I use to have really bad acid reflux episodes because of stress while in college and tobacco use. It would cause me to start sweating and on 8 different occasions I lost consciousness to wake up and vomit stomach acid for an hr or so and have to lay down for a few hours to come back to normal. This was most likley just a build up of stomach acid, which i have had issues since i was a baby and could not feed unless in a upright chair, with drugs and tobacco making it worse and losing consciousnesses from the rise of acid and the feeling it brought on. Since taking my daily acid reflux medication for the last 8 years I have not had these issues.   