What is wrong w/ Pinky my bf cat?

Princess Pinky is a Rescued Cat, has been homeless all her life til my bf fell in love w/ this clingy, sensitive girl who is 12 yrs young. Pinky is L6 Moon in 10th in Sag. It appeared pinky had a joint stiffness in lower back legs, hip Area, to me. Jupiter is in Aries 2nd house. Pinky was fine walking normal, day prior. All of a Sudden he took her to the vet, this Sunday, finding her in this state when he woke up. And she was given a sedative, at a higher dosage, my bf was unaware, by our Emergency vet, by her or her Tech physically. I told my bf if he was uncomfortable w/ it to google it and call the vet as she will be back tomorrow, so she is currently hospitalized at a Local Vet. And we took her off this sedative without any explanation what is wrong w/ her. Our local Vet whom we trust is treating pinky and has her hospitalized, he also was not happy w/ her paperwork the drug pinky was given by the vet. I am Saturn L1 in 1st. Today the Former Vets Staff’s office called and said if we don’t get her there she will die. That she had kidney issues. Regardless we are treating her w/ a professional Dr. this is only to get a probable idea not a diagnosis at all. My bf Sun L7 in 2nd physically took Pinky immediately to our Local Vet. I was not there in either vet visit nor do we live together. The Vet my bf used for emergency last sunday was swamped, and I am worried if she was overdosed, and they were distracted. If this will harm ger kidneys. She came home way worse that sunday. At the moment all we care about is pinkys well being and being healthy. He has replayed video footage he says no falls, the night before sunday.

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