Hi, My baby boy is 10 months old but has not been that chubby since birth. He puts on weight n looses weight as well. He is 7.7kg right now. He is healthy, fit and active. He eats all food that is given to him but not sure why all the food he eats doesn't help him look chubby. Also he is still on feeding n drinks milk more often. Would like to know what could be the reason he doesn't look chubby. I am having thyroid problem. Would like to know whether if that affecting my baby not to gain weight.