Mushed whole food first time (after 8 hrs from eating)
Liquid the second because she had can only (after 5-6 hrs from eating).
She is eating very good food (Nutro is formulated for sensative tummys and PetSmart stuff also). The Natiures Receipe is specific to sensative tummys.

It could of been hairballs, she does groom allot. Having not had her all that long it's a trial and error situation as far as "whys and hows' etc.