About 30 years ago, I suffered a heat stroke while completing a running marathon in 80+ degree weather. I collapsed and was unable to situp or walk for several hours. I was administered fluids po, but not IV, with a doctor s supervision. Since that incident, I find myself much less tolerant of warm temperatures/climate. I sweat easily, become irritable, and generally do not function well. Is this a permanent side effect of heat stroke......to be affected by heat more, and less tolerant of warm temps?