... assume was some sort of minor panic attack. I felt like I was going to pass out from low blood sugar, but I ate and it did no good. Also could have been an episode of high blood pressure. Anyway, since then I have had chest pains, feelings of heaviness in my chest, and zero energy. like I feel like I'd have a heart attack if I walked a block. (The day before my symptoms began, I walked two miles no problem.) I feel like I can't take deep breaths. We moved about a month ago, and I've been working 70 to 80 hours a week. and of course we have no insurance right now and won't until Oct. 1st. So I have been very stressed out lately. But my chest heaviness and lack of energy don't feel emotional, if you know what I mean. Anyway, I've been on Lexapro 10 mg daily for 9 months, and it has been very helpful for my depression, but want to stop if these sudden symptoms are Lexapro side effects. I'm 35.