Few days ago my LO aged 2 had a fever and was complaining of an ouchy mouth. His upper gums were very swollen and since then he hasn't been eating or sleeping. GP said virus and the dentist today has advised we go to the hospital as what he has is caused by medication (which he isnt on any) or genetic. He asked whether i have any diabetes in the family which i dont but I dont know paternal as we have no involvement with him. Absolutely panicking now. He generally has a pretty good diet - eats fruit and veg and doesn't have fizzy drinks or crisps or sweets. Occasionally a bit of cake. Has anyone been in the same boat ??