Three day headache with fever followed by a fine red rash all over body. Should I worry?

Patient: Only symptoms on each of these days:Day 1: HeadacheDay 2: Headache and 102 feverDay 3: Headache and 101 fever and dizzyDay 4: FineDay 5 (today): Dizzy and fine red rash (flat and not itchy)all over bodyShould I make an appointment to have a doctor look at me? I dont know what it is or if its contaigous and I have a 2 year old son and am leaving for vacation today. Thank you for your time!

Doctor: