Many doctor visits, no answers or possible reasons why my 14 month old grand daughter does not roll over, crawl, sit up or attempt it. Communication and / or speech limited to a vowel sounds or b, m and d. She has had full body X-rays an MRI(2nd to be done), countless blood tests, re: AFprotein. Supposedly chromosome disorder tests. (I do not know if one test checks all chromosomes or if each one requires a different test). She has some compression - playing patty cake, act of clap of hands together (left hand open and more control in her intent to clap to her right hand. Her right hand remains closed or fisted. Very little movement toward meeting her left hand). Please, some notion to all that is not happening. My heart breaks for her.