Good luck Starbucks - I would echo what the others have said about exposure work. I was afraid to run completely around a 3.5 mile path around a bay (if by myself). I used to be able to do this all the time - but after my first panic attack, I developed this fear.
My exposure work was to gradually increase the distance I would go along the path - first 1/2 a mile from the car and back, then 3/4 of a mile, 1 mile, 1 1/2 miles and so on, until eventually I could go all the way around again! I definitely had setbacks and times when the panic was too much and I had to turn around. It feels so good when you can finally defeat your fears. It is worth all of the effort you will need to put into your plan. I look forward to hearing about your progress. You can do it!