[joy and bella]

Bella had very very bad gas last night and then all of a sudden pooped twice in the bedroom, which she never does. she has had diarea all day today as well and it is continuing tonight. I thought if it was something she ate it would have passed through her system by now. She stayed at my boyfriends parents house this weekend and the only thing they fed her that was bad was pasta sauce. Could the diarea be from the steroid she is on- prednisolone- the only thing is she has been on it since wed, and the diarea started last night, so she was fine for 4 days.
i also started her on freeze dried raw food- but she hasnt eaten that since saturday? would she still be having problems?
any help would be appreicated. thank you in advance