I sometimes experience heart pulpations. I don't feel dizzy or nausea but I do feel like I can't breath anymore and I have to sit down for a few seconds to pass.
After these pulpations I feel a sort of pain around my chest for the rest of the day and I wonder if this is something serious or just another symptom of anxiety.

It is really terifying because to me it feels like I am having a heartattack. I am really afraid that there is something wrong with my heart. I feel like I can't do any exorcises or movement at all in fear of feeling your heart racing again. Should I be worried by this because I am now even afraid to go outside in fear of a heartattack.