Ds 11 months is small and always has been but in the last 4 weeks he has lost what I would consider a large amount of weight.
Naturally I rang the GP and queried this and after waiting all day today for a doctors appointment he was seen tonight at half 5 and they are not even remotely concerned. The GP even said his weight wasn't low for his age. 
Last month he was - 17lb 2oz
Yesterday exactly 4 weeks later he is now - 15lb 7oz
He has been cruising for over a month and has been crawling for several months and whilst not noticeably much more active, I'd say he is always on the go.
He eats really well, 3 good meals (mixture of blw and spoon fed) and 2 snacks plus he has 2 bottles a day.
I don't think I'd be as worried if he had lots of weight to lose but he wasn't very heavy before losing the weight.
Am I right to think they should be more concerned or is the GP right to say he's fine and the amount of weight he has lost is nothing to worry about?