Suggest Treatment For Swollen Face With Bumps After Workout

Yesterday i went swimming and walking from 8 am to 3 pm. in this time i did not eat or drink anything. i did not use sunblock becuase i didnt have any or money to buy any. when i feel dizzy, my heart is racing it hurts to be typing this, i keep seeing things that arnt there. i feel nauseous, im not hungry or thirsty, i havnt been going to bathroom as much as i usually do, everything is blurry. since i woke up this morning my face is very swollen. alos it has bumps that almost look like the bumps when someone has acne and scaring.(i usually have perfect skin) it really hurts but i cant cry