Why did I pass out after running?

Question

I go to the gym and run all the time, it's not like I did something unusual. This time while I was running though it felt like I had less energy and it was a lot harder to make it a mile than it usually does. I got to .75 miles and stoped then I felt like I was gonna toss up. I went to the garbage can and then down I went. my friend was there with me but I'm so confused why do you think this happend?

Answer 1

It was probably hot and humid out and you were dehydrated.

Answer 2

you probably got too dehydrated

Answer 3

well im only 12 but do cross country and track for 1600k and i run 3 miles. so that happended to me and my mom made me get a ekg. that is what u shoukld do i got one and i had left arial abnormailty which meansd my left said eof my heart is bigger than normal. or it could bee ashma. only if uhad pains, out fo breat, and chest pains

Answer 4

Were you well hydrated?  This can happen when you overexert without enough water.

Otherwise, see a doctor.