My 8 months old baby sweats a lot from her scalp sometimes ( usually when she is asleep) Today in the morning, when she just got up, i could see the bedsheet was wet as if she has passed urine there. But the wet spot was under her head and when I touched her head, it was wet. She has long hair and we havent done mundan yet. What could be tbe reason of her sweating ? Does it require medical attention ?