Lori have you been tested for hormonal problems? thyroid disease cushings, or addisons,disease.
It would be worth having some testing for these, as they can cause flushing, oh and by the way the menopause?
Carcinoid also causes flushing.
Have you had a ct scan of the lungs, and abdomen?
Also pheochromacytoma, which is an adrenal tumour can cause flushing, headaches etc
Hope this helps
Im very interested in this post, i have some flushing going on myself at the moment.