answered May 17, 2010 at 01:36PM
Do you know if the child has other symptoms that might indicate problems with attention, distractibility, sleep, food sensitivities, or the like?
One possibility is Sensory Integration Disorder. This can sometimes be a "standalone" condition or it can be secondary to Attention-Deficit/Hyperactivity Disorder.
On the simplest level, it could be the child is deficient in magnesium, which can manifest in such sensory sensitivities. On a more complex level, as with ADHD, the sensory issues are associated with the difficulties in processing or "filtering" stimuli.