Answer
Pheochromocytoma (or the hypersecretion of norepinephrine and epinephrine) might be the cause of the given symptoms. Tumors in adrenal medulla can cause an increase in catecholamine production. Hyperglycemia allows us to rule out the possibility of thyroid problems because thyroid problems will cause increased glucose catabolism and will not cause hyperglycemia.
Work Step by Step
Same as above.