I don't know if it is heat stroke but here are some signs & symptoms..




Mental confusion
Delirium
Chills
Dizziness
Loss of consciousness


Convulsions or coma
A body temperature of 105 degrees F or higher
Hot, dry skin that may be red, mottled or bluish
A strong fast pulse.

http://esf.uvm.edu/sirippt/summersafety/tsld019.htm