Here's one for serious people, any stupid answers and you have me to answer to.?

A young boy, 4 years old, is disabled. Doctors haven't a clue what's wrong. Symptoms, elongated skull, unable to communicate, subject to limb dislocation, can't walk, therefore wasted muscles in lower limbs, has large flexibilty in joints. I'm no quack. but my initial thoughts were a mixture of Hydrocephalous, Autism and Cerebral Palsy? Any ideas? Sicko's forget it.