Hi ...I've been a Busdriver for 33 yrs now, and I'm also Diabeteic, Many drivers had bad back pains thru out my career..I use do sit-ups and push-ups on the bus at the end of the line "all day" long..Never had a pain in my back and still don't since I retired 3 yrs ago..As for the Mariguana part, I'm into Natural cures..I've been Diabetic for 15 yrs now, For one year now I've been taking "Diamoxol" its the natural cure for this disease..My reading are excellent everyday, I also walk and watch my weight too..I am sure the Mariguana isn't interfering with your diabetes ask your Dr!!!.........hope this helped Tom