you need to see a doctor soon, it could be a whole host of things, maybe problems with b/p, or blood sugar, heart issues, infection somewhere, so the best bet for u is to see a doctor asap, he will likely order some blood work to look at infection, dont panic though , it can be something simple or manageable!!! until you get there, get plenty of rest, drink lots of water, keep a journal of sympotms, and what you are doing when it happens, or what u may of ate , time of day, etc..... and if it is bad enough go to a hospital, wish u all the best, KUP on what happens!