i am a 30yr old female, 120lbs, 5'7", med hx incIBS, endometriosis. recently i have been feeling very nauseated while in a hot shower at night. it takes a while to go away, i just go to bed and try to sleep it off, so that i don't throw up. it doesn't happen every night, and it doesn't happen when i shower in the morning (after a night shift).