It doesn't sound weird at all, can actually get desensitised to pain, and depression...someone described to me as a dimmer switch...I think it actually has a function when we're feeling too much pain.
I'm sorry you have this pain, and inflammation. I can imagine not wanting to focus on that kind of pain. Do you get much physical support?
I see a Shiatsu practitioner sometimes. That has really helped with holding lots of tension, and pain from that.
Have you talked to your therapist about your physical pain. I think it's hard to define emotional and physical pain, they are quite connected