I have a grandson who is very delayed. He is 5 years old and doesn t talk, walk or communicate, he also has very low muscle tone. I have a suspicion that he has cerebral palsy, but no official diagnosis. Over the past few months now he has been going through a stage where he is extremely tired, he just lays and sleeps , he will eat if fed. this will last for about a week, during this time he has no bowel movements. when he comes out of this period he has mega bowel movements and then goes into a hyper stage for a couple weeks where he doesnt sleep much and never sits still. Very weird. I know there are many more questions but have you heard of anything like this?