Why Does It Feel Like My Throat Closes Up When I Swallow Meat?

So everytime I eat meat products, it feels like my throat is closing up every time I eat meat. I have to stop to either spit it out or just try to swallow it real fast and stop eating for a few seconds then I'll be able to eat again. It doesn't matter if I take small bites, it still feels like that. I have a few times before,choked on my food and almost passed out.I started slobbering everywhere and knocking stuff over because I couldnt hardly breathe. It makes it hard to breathe. This doesnt happen when I am eating anything else.It just happens with meat only. If it has anything to do with it, I have had a couple lumps show up before like on my neck, close to my throat. It went away and I do have neckpains sometimes but not a lot.I don't know if this has soemthing to do with my eating habbits because I dont eat well.I dont eat a lot at all actually. I do have a doctors appointment tomorrow for another certain reason and I planned on telling him.