Why am I always craving orange juice?

I’m always craving orange juice. I can’t seem to stop when I’ve already started and it’s as if every time I know it’s there, I jump at the chance to have it. But then I get really hyper.
I just got done drinking a pint and a half of just OJ. That’s 300% of my DV for vitamin C. And 55 grams of sugar.
I don’t know why, but I really want to drink another cup or two. It’s like cocaine to me… I just need another hit of OJ.