I have the foamy spit too! My stomach is burning, like acid reflux. I can't get comfortable and if course my mind is taking over and I'm panicking. I sleeved Thursday and c.d.s. Home yesterday late.
So I've been in liquid diet now for 5 days, and so far not as bad as I feared. Down 13lbs. I've had a headache every day though. My doc had me doing optifast.