Hi can anyone help me?

hi for about 2/3 days now im feeling sick not actually being sick yet but feel like im gonna throw up i dont want to eat just snacking like a sandwich a day i cant eat a meal, i feel bloated to. i normally never stop eating so its really strange, just to note 4 days ago i got told i had a kidney and uti infection, but no pain any more except lower back and stoamch