[heylids]

Our 1 1/2 year old yorkie had diarrhea about 4 days ago,(we thought at first it might have been something she picked up and ate while being outside???) then the last few days it started to firm up, yesterday it seemed to almost be back to her regular poop, but last night and this morning she had some more diarrhea, not alot (it's also dark brown and alittle bit like mucus). We have had her on acana highland for most of the year and we have been adding vitamin E, 400 iu, human grade in the gel like pills, we cut into them and squeese the oil in her dry food in the morning and add some yogurt, she has had this every morning for well over a month, so I don't think it's that, but if anyone has any thoughts on the vitamin E, please let us know your thoughts.
Anyway, I'm a bit confused as to why she is suddenly getting diarrhea again and why after it seeming to be going away, it's suddenly back this morning.

Please help.

p.s sometime if we are out of regular natural yogurt, we give her some of our flavoured yogurt with artifical sweetener...is that ok, we haven't been giving it to her these last few days, this morning she just had her dry acana and yet she had a bit of diarrhea about 1/2 hour ago