yes she's been spayed about 2 yrs ago
she's still eating and drinking normally
thirst and urination are normal
her vomit is usually yellow,foamy and pretty fluid no chunks or the like, once there seemed to be some food. that was this morning
she's fed once a day every evening
she's recently been eating the food of a new dog in the house. its a small amount. but the grass eating has been going on prior to the new dog.