I had heat exhaustion hit me once when I was in marching band back in 7th grade. Not a fun experience. Dizziness, nausea, slight euphoria (think nitrogen narcosis). Mine passed quickly with rest, shade, and proper care.
@flygande_ren Don't get me wrong - that was waaaaay back when I was in 7th grade.
I'm in an air-conditioned house now. :)
@leejackson It took me back to marching (percussion) in wool uniforms in Southern California.
I only ran over the woodwinds once :)