<human>: I adopted her last Friday from the animal shelter and as soon as I switched her food she started having diarrhea. It has gotten progressively worse over the past few days. She saw the vet yesterday and her fecal test came back normal (negative). I have been feeding her white rice and boiled chicken for the past two days. Tonight when I walked her I noticed bright red blood in her stool and of course I half panicked. 
 I don't think she's drinking enough water so I got her some Pedialyte but she's not interested in drinking it. 

Do you guys think she'll be okay until the morning when I can call the vet? 

Her energy and and mood seem to be totally fine, in fact she's in full blown puppy mode.

Can you give me the gist of the text in a nutshell?
<bot>: new puppy has bright bloody stool and I don't know how to help?/what do you think the vet will say?