I think i need help

Alright well i have been self medicating for a while and i want to make it legal. I live in the bay area. I have had knee pain everyday all the time for the past 6 years. I havent been to the doctor to check it out. But after this last time of blowing my knee out i think i need to go. Smoking is the only thing that takes the pain away. I am a kaiser patient can anyone give me some advice? thanks