Have had headache for 3 weeks, sudden dizziness for a few seconds many times per day, nausea that comes and goes and an uncomfortable 5 count pulsing over one eye upon touching cheekbone or moving head to one side quickly. Am recovering from reconstruction after bilateral mastectomy one year ago and quit all meds except Evista and Synthroid three months ago so don't think it's a withdrawal from pain meds. I don't feel well most of the time, an unusual happening for me and have little energy or stamina. ANy ideas?