Over the past few days I have had an increased amount of dizziness, headache, and fatigue. I stopped my celexa 40mg cold turkey one week ago. I have had a flu vaccine but have been battling respiratory congestion (mostly nasal passages and throat) for several weeks. I am overweight 6 250 lbs and drink several sodas a day. I have had pains in my right upper abdominal quadrant (under my ribcage) for over a year but when I had an ultrasound they said it was fatty liver. Is this likely the celexa, cold/flu, dehydration, or something else.