Graves' Disease Support Group
Graves-Basedow disease is a medical disorder that may manifest several different conditions including hyperthyroidism (over activity of thyroid hormone production), infiltrative exophthalmos (protruberance of one or both eyes and associated problems) and infiltrative dermopathy (a skin condition usually of the lower extremities). This disorder is the most common cause of...
I'm sorry you are having pressure problems behind your eyes. :-( Does your sinus/cold medicine contain any epinephrine which will rev up the thyroid problem? It will also increase eye pressure as well. In addition, sinus problems will make the eyes feel full.
Do a google search on this and see if that's the case.
Hope you feel better soon.
{{{hugs}}}
:)