DO I HAVE STREP THROAT ??!?!!?? (ASAP!!)?

yesterday i shared a cup of kool aid with my little cousin who had strep. now, my throat is scratchy and a little sore. i can see my tonsils, and one of them has a little bump on it. i have a body temp of 99.7. i feel tired and have had headaches and stomach cramps throughout the day. is it likely that i have strep ? i appreciae yuur answers ! <3