Is the panic going to ruin me?

I went to the doc yesterday and the MRI showed that I was born without a joint in my foot.  I asked the doc why its bothering me now. He said he didn't know. But it can be corrected without surgery.  Thank you God.  He is slowly going to raise my arch 1/8th of an inch at a time til we get to 3/8th inch. I have to go back in a month to see if its working.Now the bad part. I went to work last night and started feeling dizzy again.  I thought oh no the panic.  2 or 3 times before I was able to shake it off but not last night.  I ended up leaving work 3 hrs early and when I couldn't find my supervisor I just left.  I called him when I got home and crying. He said it was o.k.  I actually felt like I was having a heart attack.  I got Ken to take the kids to my sister in law and then take me to the hospital.  When I got there I got worse.  I felt like I was going to pass out.  I couldn't breathe and I told Ken I needed to go home.  So we did.  I didn't sleep all night trying to breath and control the panic.  Ken left to go get the kids not long after we got home and I told him I just wanted him to stay with me but then I said go get the kids because I could tell it was bothering him. I hate this.  I thought I had conquered most the this panic thing and now I'm afraid to go back to work.  Its like I'm starting all over again.  I am really scared and don't know what to do.  My chest still hurts and I just want to cry but not in front of the kids. Now I'm thinking I can't go to the zoo. I can't go back to work. I'm afraid I will become agoraphobic again.  Oh God I prayed this would be a wake up call and told God I would get back in church and serve him like I'm supposed to do.  I just can't go through this again.