So last night, I woke up as I started to throw up. I can't think of what could have possibly triggered this. I wasn't feeling ill, had no noticable heartburn etc... What the heck? My husband also said something similar happened to him last night (he is known to have pretty regular heartburn) Is this pregnancy related? unrelated completely? Or a heartburn thing that wasn't from noticable heartburn??? I'm not worried, it was just upsetting/annoying when it happened and I'm curious.