I get barely controllable explosive diarrhea every time I eat
Are you on a special diet?
Well, I'm on diet almost all the time, but it seems like I can't even control what I eat.
If what you are doing is not working for you and you keep being sick every time you eat, it is time to see a doctor. It is not good for you and it could be dangerous in the long run to keep getting sick.
It's not a big deal. I won't die from it.
Maybe you won't die from it but it could damage your digestive system badly. You're making your situation worse by taking it lightly. Go to a doctor asap and get some help.