Is it normal to cry when you laugh?

Not just once in a while. This is like, a daily occurrence if I'm with the right people. I don't know what it is! When I laugh sometimes I just actually can't control myself. I don't have a loud or obnoxious laugh but sometimes I seriously can't stop myself. I'll just try to cover my face or wipe away the tears quickly because I never really see other people cry when they laugh, at least not as much as I do. Does it look crazy if you see someone laughing so hard they're crying? Any tips on how I can try to control this better? When I find something funny my mind usually runs with it, it repeats it in my head or adds to it or connects it to other funny stuff. People say I laugh at everything, and I would have to agree somewhat, but I genuinely find a lot of things funny, and usually it's not just in and of itself, I see it in a different way. But I digress; is this normal??