I Have Been Sick 3 Weeks Stated Out Seemed Like

I have been sick 3 weeks stated out seemed like stomach flu light colored stool for 1 1/2 weeks, extremely painful mouth sores then extreme sore throat on left side only from behind ear down front side of throat hard to swallow anything then feeling generally really bad, only taking ibupropin. Forgot to mention the flat irregular rash on calfs started way before any other syntoms please help me I can't be this sick I'm a caregiver