Hullo, sorry I've not come back to post!
Maybe you sound like you are still struggling. It really does get better eventually (apparently) 
I'm now 6 weeks after being diagnosed.
After my little visit to a&e last weekend, when I honestly thought I was dying, I appear to have got on top of my anxiety.
I'm not entirely sure how, so I'm afraid I can't give you any advice, but it was almost as if being told that there was nothing physically wrong with me (after many blood tests, ecg etc) I realised that I was the only person who could make my situation better.
Whenever I feel panicky or like I am losing control I tell myself it is just a symptom of the recovery and it needs to go away so I can get on.
In the interests of total openness I also have burst into uncontrollable tears a number of times, but even that feels good as it lets go of all the emotion you are trying to contain.
I am going to go back to work tomorrow but only for the morning to see how I get on.
Maybe have you been looking after you GC this week?