My Dd is five and a half , for the past month she's been complaining of pains in her tummy , didn't seem to serious and she is eating as normal, but I put her on the weighing scales today after noticing her trousers seemed a bit big on her and she's lost 5 lbs since I last weighed her about 2 months ago . She's generally not a complainer and her energy seem ok, she has also started suffering a lot of nose bleeds 4 this week . Any ideas what could be the matter? Should I just monitor her weight for a while or take her to the doctor now ?