Anyone ever had child complain of frequent headaches and incontient during sleep?

Child question: It may be sleep apnea with your child. The grinding of teth by sleep apnea causes cluster headaches and the bedwetting can come from sleep disturbences. Have a dentist eval your child and check tonsils. If swollen tonsils and dark circles under the eyes its time to see an ENT for tonsil and adnoid removal.

Not normal!: If you mean night time headaches and new onset incontinence i would have the child seen by the doctor soon. This needs to be evaluated for multiple causes.