Bao has been terribly ill since Sunday. Three days -- and nearly $1000 later -- we still don't even know for sure what's wrong.

He has periodic, wracking stomach spasms. His whole little body wrenches. He hasn't eaten anything since Sunday night, although he's drinking water. But every time he takes a drink it sets off more spasms.

The x-rays showed nothing amiss. The blood tests came back negative for everything. Kidneys, liver, lungs, all doing what they should. His electrolytes are good. His blood pressure is excellent. No neurological symptoms, either.

The spasms are painful but because of Bao's heart condition, Dr. Mike doesn't want to use pain killers, because they'll raise his blood pressure. Infant anti-gas medicine and juvenile Immodium seem to be helping with the symptoms. But what's causing this? At the moment, the best guess is some kind of extremely nasty, anaerobic bacteria in his gastrointestinal tract. He's taking medicine for that, but so far the bacteria -- if that's what they are -- are winning.

I am beside myself. I'm afraid that if I leave him alone, he'll stop breathing and die. This is irrational, but after three sleepless nights the ghosts and goblins come out to play.

Any ideas? Help!