Any chance it could be seasonal allergies? Mine started Easter weekend with clogged ears (which has never happened before & really freaked me out). I had been feeling really "off" for a few days before they clogged -- a little dizzy, felt like my balance was off even though I walked fine. Certain movements like tilting my head up, bending over, turning suddenly seemed to make it worse. It may have been anxiety-related, too, because I guess those are symptoms. But I thought maybe it was ear related & that's why I felt like my balance was off. Anyway, my ears were clogged for a few days (which causes head pressure & is super annoying), then my sinuses drained for a few days & now that feeling is gone. But if it's not allergies, it could be anxiety-related.