My 32 months toddler has a reduction in weight by 1 kg in 1 month.He was 16.2 kg in July and today I weighed him he is 15.2 kg.He has suffered from cough n cold n fever last month and he recovered.Now since 8 days he has again been suffering from cold fever.He has also lost his appetite.Doesnot eat anything since last 2 days.Why is he frequently falling sick?is this the reason for his weight loss?