Sorry for your troubles. 4 months is nothing sorry to say. These injuries take time probably more than a year to see real improvements. You will have to find a way to manage your life till then, both on the recovery side and on the career side. It's a real test of faith on yourself and keeping on moving forward in the storm and taking as much pain as you can. We are all having similar struggles. It will go away one day that's a promise. Help yourself and don't fall.

Have you got your neck checked ? Also you should be taking more than just b12 and fishoil I think. Others will have better answers. Hang in there. Good luck