A QEEG can be done for a number reasons. The two that are most relevant to anyone suffering from PCS are:

1. for legal reasons - i.e. to win a lawsuit or to get SSDI. In both of these
cases, you are objectively proving abnormalities in your EEG.

2. for neurofeedback therapy - it serves as a roadmap, or guide, for the
trainer

In my humble opinion, I wouldn't get one unless you are going to use it because they are pretty expensive to get and insurance usually won't cover the costs. However, if you have the money, it may be nice just to have an objective test validate how you are feeling.

FYI: There are two other tests are just as sensitive and valid as the QEEG and more insurance companies are starting to pay for. However, you will still have to pay for about 20-30%, which amounts to about $1000. These are the fMRI and SPECT scan. Again, IMHO, to get one won't really do a whole lot for you unless you are planning on using it for therapy or legal reasons.