Please help us save our sweet kitty Hunter

Tonight we were looking for Hunter to feed him dinner and found him laying down unable to move.  He can’t walk or stand and we have no idea why.  He was fine this morning.  He’s usually very active/playful/happy kitty.  This little cat is the light of all of our lives.  He belongs to my niece Nicole.  She’s devastated.  We all are.  We had to leave him at the animal hospital where they’re charging us this amount just for overnight care and tests.  Tomorrow we will get another estimate.  If you can find it in your hearts to donate whatever you can we would greatly appreciate it!  No amount is too small.  This cat means the world to us.  We are all in tears.  Please help us save Hunter!  We had to leave him in the hospital, and in the morning the internist will see him and we will know more.  They are saying it can be a neurological infection of some sort, or a spinal injury, or that maybe he ingested something toxic.  His blood sugar levels were at 300, but they say it could be due to stress bc it’s unlikely that he’s diabetic at 6 months.  Please please please if you can donate any amount please do.  Thanks for reading!  I will keep you posted on Hunter’s condition as right now we are lost and don’t have an answer yet as to what’s happening to him.  He can’t walk he falls over.  He was doing well this morning.  We are sooo heartbroken!