I remember reading about this in (I think) Dr Doris Rapp's book "Is
This Your Child?".  Certainly for my son , it is true.  He gets almost
hysterical if we forget to trim off the tag in the neckline of clothes,
he can feel it (very hyersensitive to this sort of thing).  Also, the
clothes thing that many have mentioned.  It apparently is a common
symptom for an allergic child.

Kim