Question

My kitten/cat is nearly a year and has been abused physically including choking, getting thrown, punched, kicked, and outright mis-handled. She had a bad swollen head for a few days from being punched and about two days later after the sweeling was gone a large bump/mass seemed to grow overnight on the back of her neck between her spine and left ear.I don''t know exactley the location, I do not want to get too physical with it.Her bahavior is still good and loving(if not more so). The only change in her I see is a slight shaking of her head when she gets up, wakes up, here and there she will give a slight twitch as if to shake it off. Otherwise she seems o.k. but, like I said, this was overnight and has only been 24 hours since. I removed her from the abusers reach for good but cannot afford a vet check. I cannot bear the thought of losing her, please help us.