hi, happened to me about 3 months ago, very similar experience and after effects. I think the anxiety/stress had been building up until my body finally sent me a warning sign!
I've been up and down since then, some days I don't feel too bad, others I feel awful (like today for example!)
It took 4 or 5 weeks of constant doctors appointments before I was willing to accept what had happened. I'd even had 3.5 days in hospital with chest pains!
I Still get some symptoms that worry me which I'm going to get checked out, but on the whole, I know I'm doing this to myself, even if I can't control it... I'm hoping time will be a healer