I have lumbar scoliosis. i am doing daily household chores for 6 to 7 hours. i am very skinny too. is this behind my sudden decrease in weight? also can i do activities like mopping, washing clothes, wadhing dishes, sweeping outside for my condition?

You are at a very young age and to have this type of condition cannot be ignored. You must find out what’s causing your problem. It can be a structural problem where you have one leg longer than the other and from standing long hours on your feet causing you to have pain and discomfort. Or it could be something more involved. Whatever the case please see an orthopedic surgeon to be evaluated