I too though there was something seriously wrong with me. Taking the
Invega might have triggered this latest round of
anxiety / symptoms. During my breakdown, I would get dizzy / lightheaded anytime I stood up. I spent 2 weeks lying on the couch watching the Golden Girls. Also, if you are still taking the Lexapro, lightedheadedness upon standing is a common side-effect of this medication. Trust your tests and your doctors. However, it might be worth taking another look at your thyroid levels.