
Sometimes you just need to talk, and cannot yet pinpoint exactly why, or what you need - other than to say that you are made unhappy by the experience of pain.
Changes in one person in a relationship (such as limited independence or income) affect both people in the relationship, and that imbalance is not always easy to overcome or accept. Therapy is a place to examine these systems issues and improve your ability to communicate your feelings with your partner or family.
After the onset of pain, patients have to re-learn how to do many things physically, and so it makes sense that psychologically there would also be some re-learning needed, in figuring out how to cope with these new stressors (that you did not ask for).
After pain, loss, and change of any kind, most people ask the question: Why? Regardless of religious affiliation or belief, this becomes a spiritual question asked of the universe, a Higher Power, or fellow humans - people like to have someone to blame, or to have a story make sense, and this type of spiritual (or existential) issue can and should be addressed in counseling with a professional or spiritual advisor.
More often it seems nonprofessionals are becoming aware of PTSD (Posttraumatic Stress Disorder), but it should be noted that this type of anxiety and distress can affect anyone, not just soldiers. If a car accident caused your pain, you may have some fear of being in a car again (because you certainly have a reminder of how badly it can end). There is research supporting the idea that how patients were injured (if there was a traumatic aspect to the injury) can negatively impact the psychological aspects of coping with pain (including how bad the pain hurts).