What the heck is wrong with me and my body?

Okay this is kinda R rated, so those that easily get grossed out by bodily functions may not want to read on.. Those that have stayed here's what's up. I have extreme dry mouth, I have to drink and drink and drink, drinking water almost makes me come to a feeling of great elation. But as soon as a drink the water I pee it out and then I'm back to having dry mouth. It seems I can't even stand up without having to go use the men's room and when I pee it's a lot. And then the cycle gets repeated. If I don't drink anything for a little while my mouth and throat get so dry that I have trouble swallowing. What the heck is going on?