Help save Charlie

Hi - for those of you who know me, my cat Charlie is my whole world. He’s one of the loves of my life and I want to do everything possible to figure out what’s wrong with him and hopefully save his life. He’s been in and out of the hospital the last 3 days and most likely has a bacteria infection and now has to get a blood transfusion and go into critical care to figure out what’s wrong with him. I feel weird asking this as financially I’m normally ok but this has taken a big big toll on me. Financially this is starting to break me. I’m a solo income living in Los Angeles - any help I can get at this point is much appreciated