It Started After I Had Choked On A Piece Of

It started after I had choked on a piece of food I felt like there was something there. Now I cough when I drink and eat. I'm concerned but it my not be conected I get a pain in my back, I also vomit and sometimes at night I like froth if that's a word(droole). I'm confused about these symptoms. I thought indigestion or something like YYYY@YYYY