I've posted my symptoms on numerous reddits and one of the most popular answers is anxiety/panic-attacks/mental-illness. So I wanted to get this subreddits opinion. 

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Over the past several weeks, I've experienced severe cognitive symptoms that are similar to short-term memory loss, depersonalization, dizziness, heart-palpitations, and confusion. These symptoms reached a point that I couldn't remember which exit on the highway my gym was, couldn't hold together complex thoughts, and thought reality didn't feel real.

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It started with heart palpitations for several days. Then moved on to lightheadedness. Then dizziness. Thats when I went to urgent care where they found nothing. There was an entire day where I felt no other symptoms than vertigo. Then it moved onto what I can only assume was depersonalization, feeling "out-of-it", and reality feeling less real. 

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I even thought it may be my house because my symptoms disappeared in several hours to a full day after I was out.  But I did have 1-2 "episodes" even when outside the house. 

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On top of urgent care, I've gotten my blood-work done, had my carbon monoxide checked, got a glucometer, gotten IV's, started eating healthier, no answers. 

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tl;dr: Severe cognitive symptoms like dizziness, confusion, and short-term memory loss. Go completely back to normal when outside the house except for 1-2 times. Already checked carbon monoxide, went to urgent care, and had blood-work done. Healthy male in my 20's. At my wits end.