Last 6 months or more been having weird body temperature changes. Mostly towards heat but its not that hot outside or inside. I tend to get cold a lot so I turn the heater on and I feel as if I,am going to pass out and suffocating. Heart beats very heavy and strong start to sweat, temp is only around 68 to 72. Started noticing this diving all this year in colder water in my 7mm wet suit. Freezing cold put the wet suit on hands and feet cold and purple like but body is burning up. I have to stay in the cold water to not pass out or take the wet suit off right away. But it continued. Adrenaline also seems to be going crazy during this time random spike but no rapid breathing or super fast heart rate, slight increase in heart rate but very strong pulse. BP doesn t go up too much either. Whats going on, I,am only 38 and I run 3 times a week in decent shape. Thanks