My anxiety as of late has been much much better than I've had in ages. Now suddenly a symptom has returned (I've had it a few times in the past and had an ECG and was told by the doctor I might need further heart scans if it continued). I don't know what's causing it or if anyone else gets it, and it is really scary. It comes completely out of the blue and the only way I can describe it, is the feeling of being winded, without the pain. It's like suddenly I can't breathe for say 30 seconds, it feels like all the air is being squeezed out of me and there's a tightness in my chest and upper abdomen.. then it eases and I can breathe as normal. It happens when I'm in very non-stressful situations and not thinking about it at all.

Does anybody else get this? I'm very worried! I've had it several times a day in the past!