I can understand the fear of public places. The overwhelming visual and auditory stimulation makes the public places problematic up to the point of being terrifying.

I hope they don't try to do immersion therapy to help you overcome this.

Many with anxiety will respond to therapy because their anxiety is thought oriented. PCS anxiety can be both thought oriented and purely physiological. It will take a different approach to deal with the physiological caused anxiety.

Have you been trying to go out with ear plugs in your ears? This can help with the auditory issues. Also, wear sun glasses and even a wide brimmed hat to help bright lights and other visual stimulation.

I can understand your head ache. The waiting room, front office chatter and such can be draining on the brain.

Try to take a nap if you can.

My best to you.