they might say that cos of no other sure causes.

they cant say to you 'it might be a indicator of you having heart failure/heart attack.'

of thing they doesnt sure, they cant make assumptions.

but you should insist the doctor to elaborate to you more. ask him questions. of panic attack why? why and why?

well feel bad 4 you. go to another hospital, if selayang cant satisfy you.

or you can seek for alternative medicine. bomoh/ biodisk/ etc etc