I am back home, she stayed there, they will keep her overnight for blood thinners and pain killers, and an ultrasound tomorrow to try and understand why she had a clot.
She was calm when I saw her, a little bit drugged but she licked my hand and purred. She tried to stand up but she was all wobbly and did not want her foot touched at all.
I will go back there whith my son after 8 pm so we can bring her her food and see her.
I uploaded my video on YouTube so I can share it here.
@Wendy&Neko thank you, that is very interesting. I guess in her case it is very distal but that does not mean she will not have another one. I hope the blood thinners work fast (not sure what she has, I guess heparin since it's intravenous for now). Her bg was very high, 220 when I left from what they told me.
The ultrasound is to look for an explanation, since her heart is fine, they want to look for a tumor, cancer or other.
Thanks to all of you for your thoughts and kind words, I did not feel alone while there and kept reading you. It might seem silly to be so worried for a cat, but I love her, as I am sure everybody here understands completely.
https://youtube.com/shorts/owvOd1Dz2nw?feature=share