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- Heart Disease
I've been noticing this fluttering feeling under my left breast and I'm not sure if it's my heart or something with my stomach. On top of that, I keep feeling hot and cold at the same time, and my feet are freezing, even with socks on. I struggle with bad anxiety and panic attacks, plus I'm bipolar, and I've been a hypochondriac since I was little. I'm constantly worried about having a heart attack. What could be going on?