Tyramine is known to cause migraine headaches in susceptible individuals. Rarely, hypertension and headaches, and other signs of autonomic nervous system stimulation, can be provoked by tyramine in patients with a rare adrenal tumor known as a pheochromocytoma, or in patients with an overactive thyroid gland. Also, some medications, when combined with tyramine, can also cause the kinds of reactions that you describe (the most common drugs associated with this interaction are antidepressants in the monoamine oxidase, or MAO, inhibitor class).
Robert A. Wascher, MD, FACS