I just enlisted hospice care for my mother - now I am having doubts. Has anyone had such an experience?

Mom has had 3 ER visits in 3 weeks and two ended in 24 hour observation stays. The social worker recommended hospice and I agreed. Mom seemed to be in pretty bad shape. She has recurring antibiotic resistant UTIs, kidney disease, Alzheimer's and becomes dehydrated (the UTIs and dehydration are the reason for the stays). She went home (independent living with wonderful private pay caregivers available 24/7) two days ago hydrated. Today we celebrated her 88th birthday (it's actually tomorrow). There were lots of residents and caregivers and she looked great and seemed to feel great. Now I am questioning the hospice choice! Has anyone had such an experience? The dehydration makes her delusional, makes her hallucinate, etc.