I know the feeling too and am so sorry you have to go through this. I had my 1st and so hope last experience with the hug a couple months ago. It's terrible!

I was also taged anxiety. It was not. Then I got the heart attack - go to the hospital asap advise (all from neuro). Needless to say I did not go. Mine finally let up.

I known mine was MS (as in flair), but I would advise you to get chest xray's and lung scans... Rule out what it is not then go from there. I would doubt that is is not MS, but play it safe.

I'm sorry I can not offer more help. BTW, it scared me to death. Really helped my anxiety - not.

Hope you feel better soon!