Our expert says:
I have had a similar experience, so I can empathize as well as understanding this professionally.
Obviously an orthopedic opinion is needed as to whether there is more usefully to be done to improve the state of the hip. Anti-inflammatories may help, but be cautious of many painkillers, some popular with orthopods and GPa, and available over-the-counter, which include antihistamines and similar chemicals included to be very sedative - they may make one comfortably drowsy, but one can easily become dependent on them, and their sedative properties can cause or worsen the sort of memory / concentration problems you describe.
Of course the smoking doesn't help improve anyone's health.
I am surprised if you hav e not been referred to a psychologist for, if possible, specialized counselling - there should be some psychologists who could be recommended by the nrurologist who was dealing with your brain injury, , perhaps by your psychiatrist, who would have experience of helping specifically with the problems of those of us dealing with brain damage and chronic orthopedic pain.
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