Bella won't eat

Thank you all for your suggestions. We spoke with our vet again and she gave us 3 issues that she is showing symptoms for. Before we start testing she gave us prednisone. Last night we fed her by hand baby food with Metamucil added and used a syringe to get a bottle of ensure in her before bed. She didn't fight us, pretty welcoming actually. This morning more baby food mixture and ensure and she ate a few of her treats! Our male boxer, Baxter always leaves a few kibble in his bowl and she ate those! Normally we wouldn't approve since his has chicken in it, but it was just a small amount and we were pleased to see her interest. It was a difficult day yesterday, we lost our last boxer Dezi to cancer at age 8 which is too young. The powerlessness that we felt took us back, but today is a new day. Again thank you for your thoughts. I will keep you updated. Be safe and stay well.

9/9 Bella update. She began eating her food on Thursday, about 2 of her 3 cups Friday, Saturday, Sunday and Monday she began to slow down a bit. Taking her meds and playing on occasion. Her diarea has not stopped, I added pepto to her pill regimen, but no change and her weight loss continued. I noticed her breathing had become labored last night and we took her into the vet at 7am. She was admitted and her exray showed inflammation in her lungs. A urine sample was sent to the lab to check for a fungal infection. Her electrolytes are in normal range so the vet feels Addison disease may be off the table which is good. Her white blood cell count is high so she has infection. They gave her fluids today and she ate a bland diet. She sat up and showed interest in the activities going on around her. So we wait. They will keep her overnight and we will pick her up tomorrow evening and wait for the fungal test to come back. This has been difficult, but we continue to fight the good fight on her behalf. Will update next week when we have more information.