Numbness/loss of sensation on the left side of my entire body?

it seems like it could be from old scar tissue, and it can be fixed. I suggest you to go to another doctor and say you are in a lot of pain and ask for an mri. I cannot believe a Doctor would tell you its anxiety. I suffer from severe anxiety and have never had numbness before. Especially with the accident that you had when your were younger, get another doctor, i strongly recommend it.