I Had An Episode Or Event. I Thought It Might

I had an episode or event. I thought it might have been a panic attack, not sure. My heart was racing, shortness of breath, lightheaded, sweating profusely but cold to the touch, all muscles seem to be constricted, color had left my face. Lasted for about 40 mins. then I was exhausted and went to bed and slept for 12 hrs.