Pheochromocytoma Support Group
A pheochromocytoma is a tumor of the medulla of the adrenal glands originating in the chromaffin cells, which secretes excessive amounts of catecholamines, usually epinephrine and norepinephrine. Extra-adrenal paragangliomas are closely related, though less common, tumors that originate in the ganglia of the sympathetic nervous system and are named based upon the primary...
I had all the symptoms you describe and a lot more so I believe you. You are not crazy, believe! You can ask your doctor for a blocker so it diminishes your symptoms and attacks, even insomnia. You can take it while they locate the tumor but maybe you will need stop medication when they are about to do the tests so it does not interfere with the results.
It is a hell, I believe you. =)