You might have already visited a physician. However, if you haven't, you must go in for a physical assessment so that your doctor can exclude the prospect of an illness (excluding anxiety) that might be generating your symptoms. You'll almost certainly walk off with a medicine to restrain panic symptoms and, with any luck, stop additional attacks. Plus, if you don't get release from what you're prescribed or what the physician advises, continue probing for solutions. You might need to locate a physician who frequently deals with panic and anxiety disorders.