You see, it can happen if you are suffering from diarrhea where one looses a large amount of fluids and if fluid is not replenished with oral intake, such changes can occur but such changes in the
weight don’t occurring a
normal person. There’s a possibility if you have used different weighing machines for measuring the weight. Slight variations can occur with the same machine also. However, if you’re not suffering from any other symptoms, I don’t think you need to worry a lot.