Before I begin, my SIL has a bit of a track record for doing this and making me nervous my DD is behind on her milestones, not doing certain things etc. Her DC were all obviously Nobel Peace Prize winners at the same age when my DD hasn't done XYZ yet 
and urgghh, so annoyed I'm falling into this trap AGAIN (competitive mothering is such a joy) but I can't stop agonising over it now, so would really appreciate some advice...
My DD seems to be progressing nicely on certain things. She was walking before she was 1, points, claps, "dances" if you ask her, recognises a lot of words and commands... She doesn't speak much at all yet (pretty much only saying "Dada", "Hi" and an attempt at "Cat") but I've been trying not to let that worry me yet...
Anyway, recently she's developed a real fear of strangers coming too close to her/touching her. We took her to the doctor's recently when she had a rash + fever and she screamed bloody murder when the doctor tried to take her temperature etc. I put it down to her feeling rotten but she's also reacted that way to things like getting her feet measured - we took her to Clarks today and dear sweet lord the hysterics it prompted were unreal! The poor woman who was helping us didn't know where to look...
I initially put it down to stranger anxiety (hopefully that's right) but my DH was video calling my SIL about it tonight and she chimes in with "Oh but doesn't that really worry you? That doesn't sound like normal toddler behaviour to me...". She then carried on that none of her kids eveeer did that and perhaps my DD has a sensory/social issue, wouldn't help asking the HV blah blah...
Anyway, I left the room so she wouldn't hear me swearing at her under my breath but I know can't get the niggle out of my brain that maybe it isn't normal... I only have DD so I'm not sure how I'd know really (like with anything!).
Urgh, why do I let her do this to me?! I've already had some post-natal anxiety issues since I had DD, which I'm still working on... I seriously don't need this 
Just going to try to find some chocolate now. Sorry for the rant and thank you for making it this far...