My cat, just fallen from the 5th floor, She's injured, I can't stop crying

Friday night, I left my window open while I wasn't in the room, my cat jumped and fallen into balcony, five floor below. We took her to the veterinary, nothing showed up on the X-Rays, she can hardly walk but she seemed fine.

Today I noticed she can't move her tail, she didn't go to her litter. I afraid that she's paralized. I didn't stop crying since.

I feel guilty, I spend 170€ for the veterinary something I could'nt afford, (My girlfriend is still studiying and we have a child) I don't want her to leave. She"s been part of my life for four years now. Always sitting next to us, next to our keyboard, listening to my programming problems.

I've heard a lot of "It's just a cat". Well fuck off. That was my cat. We shared so much in four years, so much time, stolen in a lap of a second.

Sure, nobody will remember this in 100 years, but if she goes, a little part of me will die too, today.

I'm feeling so bad. I'm devastated.