i need some advice. my 13 year old dd has suffered from constipation most of her life. she can go weeks without going. i have tryed on numerous occasions to try and find help, but she just refuses to open up to anyone! she has now gone into puberty and i feel she could do without this problem too. i also see a personality change in her when she has this problem, very moody and angry towards the family. please if anyone has any advice, i would be very gratefull