<s>[INST] I m a 19 year old female, a bit ago after having an orgasm I was laying down when I felt as if someone had squeezed my heart I sat up in a panic, but it had already went away leaving only an uneasy feeling in my chest. It wasn t painful more just scared me. My heart started racing (but I suffer from panic disorder) and after trying to look online and seeing nothing but (heart attack heart attack) I m kinda freaked out. Right now I m feeling really uneasy, I m breathing though. I am over weight also. [/INST] DearWelcome to HCMWe understand your concernsI went through your details. I do not think you had any heart attack because the symptoms related to heart attack is not what you mention. The mentioned symptoms are just one of several symptoms. If you are already diagnosed with panic disorder, the current symptoms could be related to that. Panic disorder is certainly due to underlying anxiety disorder.  I think you have stress related anxiety disorder. Anxiety disorder is fear related. Whenever your body fears, or becoming anxious, body uses this defense mechanism. This is a natural procedure. You may consult a physician and get your EKG done to be on the safer side.If you still need my assistance in this regard, please use this link.  Please remember to describe the whole problem with full detail.Hope this answers your query. Available for further clarifications.Good luck. </s>