... Tylenol and Motrin for a fever. Tried taking recommended dose for two days and it stayed a constant 103. Took the 2000mg 3x daily for 4 days. Each time I took it, it worked but would come back 2hrs before my next dose. I finally got the fever to stay away but now I have some light redness on my stomach and my kidneys and liver have small sharp pains. I have only urinated 1-2 per day Should I worry