Last night my friends and I were drunk and (Stupidly) decided to pick up some hookers. I had protected sex with her. This was around midnight. The very next day(today)after after about noon I feel like I have chills and a fever as well as a sore throat. I am also tried and the upper area of my abdomen right below the rib cage feels slightly sore. I have no nasuea but if I eat or drink anything it hurts my stomach a little bit but no vommiting. I have no headache whatsoever. No rash or anything, my body feels slightly sore but it's not unbearable. Is it possible for HIV symptoms to show up literaly immediantly the next day? Please respond I am only 21 and very scared.