Hi cloudsnsun...

Panic attacks are sometimes causes by physical diseases/imbalances.

Have you done a thorough health check lately? Sometimes panic attacks are caused when too much stress-hormones are released into the bloodstream.

Also panic attacks come and gone. You are now at your worst so it can only get better.

Since when did you develop a phobia of haircuts? (I don't think there's anything strange about it). Sometimes when you totally understand why a haircut triggers anxiety this can make it go away.

Take care.