I am 19 years old and male. I did something very idiotic the other day. I attempted to abuse cough syrup medicine to try and trip on it. During the experience and severe diaria and shortly after I think I had a severe panic attack or a mild heart attack im not sure as I did not seek medical attention but I would like to know what may have actually happened. The panic attack happened with the symptoms of this. I felt a freezing cold sensation in my feet which rose up my legs and into my chest and armpits. I can describe this similarly to the feeling of when having a catscan I think it is and they inject you with that chemical that makes your groind and armpits feel very warm, except it was freezing cold. Along with that my heart started pounding and I was twitching and trembling. I was sweeting profusely and I had the feeling that I was about to die. I was scared for my life but the feeling passed after a few minutes. I know what I did was stupid and I would just like to know what may have happened.