Hi , i am a 24 yr old , i do physical activity regularly . Two days back, i was in police training camp and that day at 2pm ( 38°c temperature) i was quite senseless and fainting about 1 hour after 2 km massive running. I was unable to speak and could not open my eyes for sometimes . Now i have an issue , i feel little pressure or pain in left side of forehead above my left eye  when i look down my eyes . I had no medical history such issue before. What 's do next or treatment procedure??