Yuck n I hate that feeling
When i get sixk its early in morning.. With no food.. Tje stuff that looks like spit i was told is stomach acid
It's like spit and I would get pressure around my lungs
When I didn't have stuff in my belly and threw. Up itd be yellow or iit'd be white and foamy . Glad i don't puke anymore lol
idk how far you are but when i had morning sickness i would throw up all my food then sometimes i wouldnt have nothing in my tummy no more so i would throw up like white stuff .