anxiety
"I'm 26 year old male, I used to lead a party animal life i.e. Alcohol, etc. I thought I was invincible through my teens then after 16 years abuse I woke up one morning and felt like I was having a heart attack flared up in the face, tingling down my arms, lack of breath, confusion, hot and cold sweats happened quite often on a daily basis so I went into hospital, did an ECG on my heart then the doctor said you are having panic/anxiety attacks. The flashbacks of my past triggered it. I've been put on 80mg slow release beta blocker they work great for me never had a panic attack since. "