Hi Hensue,
I'm really sorry to hear about that incident on the way to the doctor. That is such bad luck!
The pale stools mean your son is not secreting bile. Therefore his body's main channel for eliminating toxins is closed, and also his digestive enzyme for releasing all fat soluble vitamins and other nutrients is absent.
This type of poo is called steatorrhea (yes, some poos have their own name - do some searches on it!) and it means his liver is sick.
The itching is also indicative of liver problems.
I would try to get him to a liver specialist if I were you. There are many tests, the trio of GOT/GPT/Gamma GT tests are just the very basic ones. And you can tell very little from scans. My little boy had steatorrhea and then his liver completely packed up, he ended up hospitalised having IV rocefin and being fed IV as well because his digetive system couldn't handle food. I learned from the doctors then, who were extremely good, that there are loads of ways your liver can go wrong and you need a specialist to unravel it. It could be anything from a toxic situation to parasites to an enzyme or hormone imbalance to a bacterial or viral infection.
Also, may I reiterate as everyone else has already said...
Your son is in a house full of animals wafting hairs and allergenic skin cells at him and impregnating the carpets with dustmite food
He's breathing in phenols and formaldehyde and other poisons from those plug-in stink bombs
He's absorbing electromagnetic waves from an X box for long stretches (I don't know how widely this affects people with CFS, but for those of us with Lyme disease, it activates the Borrelia into a frenzy of toxin production)
He's not breathing oxygen-rich outdoor air so becoming more hypoxic
Possibly getting exposed to environmental mould which is allergenic and toxic
and filling himself with milk which can cause structural damage to the brush border of the intestine (leading to malnutrition), as well as an allergic reaction, possibly leaves lactose in his intestine to feed harmful bacteria, and produces caseomorphines which can cross the blood brain barrier and play tricks on your brain causing incessant pain and psychological symptoms.....
If I were in a house like that, well, I wouldn't just think I was dying, I would probably BE dying! hearing all this, personally, I think you just need to get him out of there. I understand that he doesn't want to leave his daughter, but I am wondering how much of a relationship he is able to have with her in his current condition. Have you spoken to his wife to ask her what she thinks would be best? For him and for the rest of the family?
I am wondering if maybe he has reached the point where you and she need to start making decisions for him?