Had One Yesterday

I have been having anxiety attacks for a few years now and I didn't know what they were at first.  I just knew they felt horrible and I wanted them to end.  I just had an attack yesterday while at a birthday party at a playground.  My daughter, age 5, and son, age 2 1/2,  were playing on the equipment while some older kids were.  My son is fearless and climbs right up the equipment and goes down all the slides.  Well a few times the older kids went barreling by my kids and my son tried to move out of the way.  He was right in front of an opening where kids can climb up and it is a 5 foot drop.  He almost fell backwards off this section and I began to feel panic set in.  My heart started to race, I got dizzy, felt like I wanted to leave, and felt a sense of doom pending.
I was proud of myself for not fleeing but worked through my anxiety instead.  I don't want to let anxiety control me.