Medical Questions » Children

Question 1:	My two year old is very small, and appears to be underweight for his age. What could be the cause, as I look after him very well?
Question 2:	My four year old eats like a sparrow. He seems healthy enough, but I am concerned about his diet. Should I give him vitamins?
Question 3:	Is aspirin safe in children? I always find it works better for my headaches than paracetamol.
Question 4:	I am having no luck in toilet-training my two year old. What could the problem be?
Question 5:	How do you get a three year old to go to bed, and go to sleep? I am at my wits end.