Hi pleasehelpmybutt,
Hope things are a little better for you today.
I can't really answer your query, because my experience after LIS was quite different to yours, though I'm at week 7 now and still no better unfortunately (here's my thread:
viewtopic.php?f=6&t=11694).
However, I know there are quite a few people that did experience this discharge, and there are several threads on here that discuss it, and I'd have thought worth reading in your case. I think probably you're body is going through a period of adjustment and your IS will be weak as its just been cut and needs to recover (it is only 9 days since your op!). It will regain its strength though and hopefully you're current problem will resolve itself.
I would take it as a very good sign that you had no pain after 3 BM's and are already feeling like a normal person again...
Take care and try not to worry too much...
Mr F