Did i have food poisoning or heat stroke?

saturday night i went out, had about 10 drinks the last drink i had was at about 1:30am, then i had a donner kebab that didnt taste very nice so gave half to my friend, the next morning i felt ok, it was 31 degrees outside and went to the gym with no air conditioning and was really hot, went home and sat in the garder for no more than about 2 hours mostly in the shade. i was really tired and didnt feel to good so went to sleep then woke up at 10:30 and threw up everywhere, all the food from the day came out, then i got really hot and sweaty but felt freezing and full body aches and was really bad all night waking up to be sick. then when i woke up at 3pm the next day and felt alot better and got better as the day went on and now i feel fine, 2 of my friends who ate a kebab from the same place were ill as well. i dont think it woiuld be the alcohol because i was ill at least 21 hours after my last drink. and was ill 20 hours after i ate the kebab. i didn't have a hangover i felt fine in the morning and also my heart rate was 110 bpm when it is normally about 72