I'm afraid it is rather suspicious RW.

Jo*Mar's suggestions are what I'd be advising especially...
Drink lots of fluids. Avoid sugars. Hit the Cranbery capsules and or cranberry juice, and take a urinary alkalinizer (usually one that's made from Sodium Bicarbonate).

If your symptoms continue you may need A/B's RW, so don't leave it too long. Untreated cystitis can spread to nephritis, and that's a very serious condition.

I hope it passes soon.