my son is 6.5 months old, at the beginning of 6 months, we started solids, he was 8.2 kg, but due to fever and cold , he was now 7.6 kg. After that he isn't much weight, in the morning he looks good, but after some time he was too thin. peeing 6 to 7 times a day, is it normal??? does it all depends on mothers milk??