Health check yesterday, all vital signs checked, all neurological signs. cranial nerves, bp oxygen level, beenn having bad panic attacks, was told all well. why do i still worry?

Check it out: If it were me i would either seek a second opinion or seek some psychological help for the panic

Good Question!: Ask yourself this one. You may have the answer. You just told me that your doctor examined you and found nothing obviously physically wrong. Unresolved conflict leads to a depletion of serotonin in the brain. The body then needs to use the next most available chemical messenger called norepinephrine. This is similar to adrenaline. It is the "fight or flight" hormone. Anxiety and anger.

Need more info: The differential diagnosis is broad but the most common cause is generalized anxiety disorder. I try to explain to my patients that it is impossible be happy when you worry about something that doesn't occur. If it is generalized anxiety disorder there is frequently a family history. The best treatment is a combination of behavior modification and anxiolytics if needed. Good luck and well wishes.