Suggest Treatment For Stress And Headaches

Dr.yesterday i just woke up suddenly after approx 3 hr sleep and was malaise,i thought it was a heat stroke so i put off my t shirt and pour chilled water on my head and underarms and foot but i was not even feeling really cold then i took a shower,it felt a slight better but slowly i was ok and one thing more my heart was beating very fast and i was taking long breaths i could not anyllze it what it was was it a heat stroke or stress attack please guide me and tell me what are the symptoms of having a stress attack and its happening to me again n again but not that extreme as it was first also with headaches.