Without knowing more about the specifics of your condition it is difficult to tell the exact cause of your pain. I will only say that it is possible that your surgeon is merely ascribing your symptoms to the only visible pathology. If there is a significant reason to believe that the herniated disc is responsible, then perhaps surgery may help. Of course the duration of your pain suggests that there is a high probability of central sensitisation defeating any surgical intervention.
I would recommend that you speak with another surgeon and possibly a pain management specialist prior to committing to any intervention.
I also believe that anyone ascribing your symptoms to something as simplistic as "fascia" without seeing more details of your condition should be treated with some degree of doubt. I am awaiting RCTs to show that fascia can be responsible for these symptoms and that treatment of same will produce effects in a greater population that expected by chance alone or with placebo.