Hello I Was Driving Today And Had To Go Pee

Hello I was driving today and had to go pee but I held it becaause I was following someone else in another car. When I got to the destination I had a pain in my lower left side. Earlier that morning I ate some ketchup from McDonald's that had a twang and a Orange color. My stomach is bloated so I tried antacid and going to the bathroom. No luck....
the pain is concentrated in one area and is really noticeable if I press on that area.
Tonight I had cold chills so I took a HOT bath to try and RELAX. Went to bed Had to cover my entire body with covers.
Chill are gone, I'm real thirsty and the pain is still there.
Thx