Kidney problems and other weird health problems.?

[Kelleh.]

Okay, so for the past couple of years I've been having some random unexplained health problems. Now lately, they seem to be getting worse. And I really just don't understand. I've had on and off bladder infections since I was about 16, and I'm 22 now. Just recently I was diagnosed with a pretty bad Kidney Infection. I'm on medication for it right now. That and pain killers. But pretty much, ever since the Kidney problems started getting worse, I had some other weird problems arise. MOST of it is thought process... I get really bad headaches, and I just feel like.. off. There's really no other way to explain it. I have this fuzzy kind of feeling in my brain, and it's super hard to concentrate. I can't think straight. I get slightly confused sometimes. The biggest thing is, it seems to hard to walk straight sometimes. My legs get like really super heavy. I get tired a lot, too. I don't know how to explain it, once again. It's just a weird feeling, and it doesn't feel right, and it's creepy. I kinda get a stiffness in my neck, also. Can't really think of anything else to add... Oh! sometimes I get what seems like shortness of breath, also. Any explanations?