Hi guys, I've been struggling with severe anxiety for years now. I had a nice stint where I barely got anxious. Maybe once every few months but the last 2 years have been horrendous. I cannot convince myself that I am not dying from some underlying health issue. I've spent thousands on getting heart stress tests, MRIs, X-Rays, blood tests you name it I've had the test done. 

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I usually feel great after the test result comes back but then a new feeling in my body pops up and I'm convinced it's something deadly. It's really affecting my day-to-day life and I'm struggling to even get through a single day without a panic attack that lasts for hours. My only coping mechanism is playing computer to not think about anything and hyper-focus on the game.

I've seen a tonne of posts advising that Lexapro really helped them and I guess I'm just looking for that final confirmation that I should try it. I'm scared of medication and side effects. Has anyone had any negative side effects? I use to take Effexor I think it was called and I'd get horrible brain zaps and feel nauseous and extremely sick when I missed a single tablet. 

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I'm new to this thread so please be kind. I just really need help.