Help For Sir Isaac Mewton

My dear darling Sir Isaac Mewton has been feeling rather poorly lately. We took him to the vet today, where everything checked out okay save for a bit of telltale jaundice visible in his third eyelids (though the vet pointed out his gums were perfectly pink, meaning that whatever it is it is not very bad so far), meaning something's up with his liver. I believe that could be something very minor or the beginnings of something very nasty; I have so far resisted the urge to google 'cat liver jaundice disease' as that will not help anything and only make me feel worse. He is not very sick, at present, but enough that he is off his game, which is usually a very fine one indeed. They took blood today and I'm waiting on the results, which will come in tomorrow.

Here he is, in all his X-TREME glory and handsomeness:

Anyway, I'd really appreciate it if any of you who feel up to it could send some nice gentle but thorough healing energy his way. I've been petitioning Bastet left and right myself.

UPDATE: Just heard from the vet. He told me a bunch of technical stuff (which I wrote down) but bottom line is it's not FIP, feline leukemia, or FIV, which is all good. But something is clogging up or cutting off the flow in his bile ducts, which could be anything from 'sludge' (the vet's word) to a tumor. So...

He's recommending an ultrasound, which will probably run about $350. Which we will do, but oh boy. So healing thoughts and wishes are still much appreciated, along with good prosperity vibes. Thank you all so much.