Someone please help me..........?

last night i woke up around 8:00 ish....and i called up some friends and went to dinner...i was feeling perfectly fine....so we got there and we ate....after we finished eating my head started to feel a little funky...so i ignored it....as we were walking home i started to get dizzy....so i just went to bed and ignored it....like around 2 in the mornng...i woke up and my body was really hot so i uncovered myself and tried to go back to sleep....i couldnt....then my body would shiver and i would cover myself....recently i got up to use the restroom and idk why but my body is really tired...i have to try really hard to walk...im tired and weak for some reason...i dont use drugs or even drink...while i was walking home...i was wearing a sleeveless shirt and a vest....it was chilly last night too..and while my body temp rose....i wouldnt sweat....right now my forehead is a little cold...so im guessing it wasnt a fever....any guesses on whats wrong with me?