I had a panic attack on sunday and admitted to hosp. all test clear still feeling panicky , head aches and heart ache. is this normal after 3 day.

No, not normal: Anxiety would be expected to produce shortterm symptoms (minutes or hours) but not days long symptoms. You probably have some condition-not necessarily life threatening-that is leading to prolonged symptoms. Allergies, viral infections, migraine headaches come to mind. More subtle can be tick-borne infections, etc. I'd suggest you seek out a good internist or family physician to carefully work thr.

It's not unusual: Panic attacks are hardcore over from. It would be advisable to see a therapist who works with anxiety disorders to help you get past this period of difficulty.