Hi I'm Smoking Methamphetamine / Yaba Tablets For Last 1

Hi
I'm smoking methamphetamine / yaba tablets for last 1 year regularly. I'm also a chain smoker. Now I'm diagnosed with cholelithiasis and had few attacks of severe pain. My doctors wants me to go for surgery under general anesthesia immediately. I stopped taking the drug for 2 days now but scared of complications.
How long / how much time I should wait for the surgery to avoid complications of methamphetamine during anesthesia. I don't want my doctors to know about this addiction.