Like, when I see someone regularly for a long time. They become habit and routine. And then they're not around for like two weeks or so for one reason or another? Boom withdrawal symptoms. My body literally physically deteriorates because they aren't around. I get hit with a wave of deep depression that'll spike into a short burst of mania every few days. All sorts of things happen. It's weird and I'm not good at describing it all.

Would withdrawal symptoms be a good way to describe it? That's the best way I can think of. I'm trying to explain to my friend who doesn't really get it.