My brother had a major stroke 10 years ago, caused from abuse of prescription drugs, (injecting hydrocodone) He has speech impairment and limited use of right leg and arm. He also has Hepatitis B and C. He also smokes a pack of cigarettes per day and drinks on a regular basis. I am his caregiver, he refuses to go to a doctor. What symptoms should I be watching for, what health problems might he be most susceptible to? What is possible prognosis for him?