Good job on 27 days Painless!
It sounds like you have replaced using with exercise and good health via weight loss. Please remember to stay balanced as well. Don't push yourself too hard in the weight loss area. I am concerned that you are taking on too much in early sobriety. I think of the key phrase "Take it Easy" First things first and all that. I have tried to make too many changes before and gotten frustrated with "feeling deprived" of everything and gone back to drinking....so its just something to watch out for. Just be good to yourself and reward yourself for your efforts.