Not only did I call, but I brought her in to be checked. The good part is the vet thought the bulging sac is looking better than it did Tuesday night when she last saw her. However, she's certainly not out of the woods as far as might needed another surgery. I asked what exactly the problem was. She said that after removing a good size hernia, it leaves a hole. The body compensates by filling the hole with fluid. It's good that the fluid is still watery blood colored. It would be serious if it turned to puss.
She stuck a needle with a tube into the sac and extracted a bunch of fluid. Then she wrapped her body semi-tightly to hold the sac tight in hopes it does not fill up with so much fluid. Then taped both sides of the wrap. The wrap is off now and we are applying steamy washcloth. Supposed to do that often but the wrap cannot be reused so I need to go out this afternoon and buy lots of it. I'm hoping PetSmart carries the vetwrap. She also stressed that if it does not heal, she will have to see a board certified surgeon for a surgery that would cost THOUSANDS. They told me 'expensive' but I had no idea THOUSANDS. She stressed the "S" on thousands.

Dega is so good. She stays still and lets us, vet techs and the vets do anything to her. She has been excellent about living in a crate and leashed walked only to go to the bathroom. She loves laying on a blanket with us while we hold the washcloth on her. She's so happy to be out of the crate and get our attention, she has not moved.