Kidney Failure

You can always just withhold information. Plus, isn't there some sort of confidentiality? I'm not sure what your situation is but maybe they don't have to disclose any information.

Hmm, good point Xenn, but I'm not sure if the confidentiality thing is valid with someone who's on probation and has past drug charges :-/

If you go to a free clinic you don't even have to give them your real name.

Might be kinda shady though.

I'd keep someone with me to watch me and call 911 if I became incapacitated, drink lots of water (but stop and go to the doctor if I didn't start urinating it out shortly), and wait to see if another symptom showed up. Of course, I don't know, if your kidneys are failing and you catch it early is there anything they can do to stop it? If so, it may be worth the risk.

Still undecided on what to do :-/

I guess I'll just hope this is just another classic back/headache.

Oh, and cranberry juice is really good for cleaning out the kidneys.

Go to a doctor. I'm fairly certain they can't pass information along to your probation officer, and even if they do, what's more important? Kidney failure is most likely deadly if untreated. Fuck dying, yo.