anyone else throw up sour ?!?

so idk if it’s normal or not but when i throw up , i throw up sour saliva.. like it’s soooo sour , i don’t throw up no food or nothing.. just a sour feeling ..

right now i’m throwing up and idk why i think i ate soemthing that my stomach didn’t like last night . please tell me it’s normal and that i’m not the only one ??