TMI sorry!

I'll start off by saying my son is protein intolerance since he was three months old. He is now 7 months old and he has been spewing after every feeding, pwer chucking all he's milk up. So the doctor thinks he might have out grown he's allergy and that the soy formula might be giving him reflux. So he is now on another formula and now he's poos are like this? I'm confused and feel stressed out and depressed that I'm doing something wrong and that he is still intolerance :( what should I do, this is he poo and he been doing this all day!