I've been taking Oxy on and off for 2 years now and I've worked up quite the tolerance.. At this point I need to take 150-160 mgs to feel good. My tolerance seemed to have shot up out of nowhere too, I went from getting off on 30 mgs IR to needing 100 +mgs within days. How long would it take for my tolerance to go down so I can just take 30 mgs again?