My DSS (5 1/2) seems terribly underweight. He is very active, however I worry that he is too skinny. I was away during his last visit so hadn't seen him for a month. He hopped into bed with DH and I this morning and even through his fleecey onesie his bones were prominent to the point of sharp! As I was dressing him later I noticed that his knees are bigger than the widest part of his thighs - surely this is not right?? I know some children are naturally skinny - my son was completely the opposite at the same age and now at the tender age of 11 shares shoes and some clothes with DH, so I have no benchmark to work on.
We only have him for two weekends a month and relations between the two households are very strained, so we are unable to discuss our concerns (we tried in the past but were told to get lost!!). Before it got to this stage there was an email last year from his mother saying that he hadn't gained any significant weight since he was 2 1/2. He hopped on the scales at the vets when we took the dog there a few weeks ago and he only weighed 17.8 kg - less than my sickly dog!!
Am I just being paranoid or is this something to be seriously worried about??