I think that you are doing very well. That yellow stuff is old stagnent very toxic bile, be glad its out. Your liver has worked very hard. Some flushes are more tiring than others. Not all flushes produce the same results. Next time you might produce more stones.
I would take only one additional herb, gold coin or chandra piedra not both. Maybe you are expecting too much all at once from your faithful little liver. :-) I find that every flush is a little different from the previous ones.
Good luck, Giz.