Well it does sound like he is resting and slowly getting better.
About the Albon, I'd have to check my records, but I do recall on TJ's paperwork from the breeder, that he did 3 or 4 rounds of Albon before he was 13 weeks old (1.8 lbs)
I too had such a horrible scare with TJ. He was about 13 weeks (1.8 lbs) when I got him and about 5 days of having him he would have have these horrible 'episodes'. He would be out of it, you could tell he was not feeling well at all. And the noises that would come from his tiny little body, I thought there was a monster in the house somewhere, that's how loud. He would not eat, drink or play, he would just lie there. Sometimes he would throw up that foamy yellow stomach bile, and I would be so upset, b/c he would throw up just before I'd have to leave for work, and I just felt so helpless. But for the most part his episodes were those loud noises and then mucus poop. I was at the Vet every other day for months!!!! We did all sorts of test, etc... It took months and those months were so hard, I was so worried, but we finally got him to a good point. TJ has a form of IBD, he will always have it, but for now it is under control and I do have a Happy 7 lbs. little piggy - "Episode Free" for almost a year