I hope you're able to heal fast. Unfortunately for me it's been over 10 months but I am making progress.

One thing I learned is that for the first few weeks, at least in my case, people will be able to relate to the fact you injured yourself and you're in the process of healing. After some time, however, they don't understand what it's like to have PCS.

I would suggest getting a doctor's note written on his letterhead that indicates you have been diagnosed with PCS and what you require to get better. For example, that you should avoid loud noises, etc. Also, he should mention that you are seeing him/her for rehabilitation.

This has helped me immensely in dealing with everyone from my therapist to family members.