My 4 year old DS often complains of pain in his feet, mainly in the evening or at night. I suffered with growing pains terribly as a young child. Today ds said his feet hurt on the way home from school, so I gave him some calpol when we got in (3.45ish). He is complaining and crying saying that his legs/feet still hurt really bad, only 2 hours after I gave him the calpol. Does this sound like growing pains or something else?