It is possible that Bone has bronchitis, bacterial or fungal pneumonia, a parasite, or cancer. Any of those things are possible. Since he seems to have improved on the antibiotics and steroid injection, it might be a good idea to have a recheck for him. Your veterinarian may want to recheck x-rays to compare for any improvement, and may be able to give him further treatment.
Big cats spawn on grass blocks at light levels of 9 or more in groups of up to 4. Some cats only spawn in certain biomes: leopards spawn in jungles, forests and forest variants; lions, panthers and tigers spawn in plains and forests; and snow leopards spawn in cold biomes. Lions and tigers also spawn more frequently than panthers. There is a 1/20 chance for a white lion, white lioness or white tiger to spawn.
My fiance said the he saw her eat this afternoon, so that is a relief. Her gums are pink (that's one of the first things I looked at on her and I should've told you that...but... this is my BABY CAT and she has me a little panicked!.. not like dealing with humans on the ambulance... she's innocent!) I do have access to oxygen... so we can make her an oxygen tent if it's necessary. Right now, she is getting up every couple of minutes and repositioning or pacing.. her respiration rate is around 50 right now... her belly almost looks like it's spasming and her heart rate is running between 80 and 90 everytime we take it... which is low... what do you suggest??????