OK, take a couple of deep breaths. (1....2....there...)
You wrote: I meant to decrease because I thought the numbers were too high with the 2.5, so I decreased and his numbers were a little better.
INcreasing will bring his numbers down, if he's earned an increase under the protocol. I don't have enough experience to tell you whether he has, but definitely a DEcrease isn't what you want if his numbers are too high.
Shakes spreadsheet looks a lot like my kitty Leo, if anything a bit better (Leo hasn't hit any blue yet), and Leo's dose is twice as high as Shakes. I was feeling like you, thinking this is a lost cause, he's going to die, and someone stepped into my condo and told me her kitty was going red and pink every day, Lantus dosage went up to 4u, then 5 u, and then at 5.75 he dove down to the 60s and a month later he was OTJ. After I read her story, I've decided I'm a soldier, this is a war, and I'm in it to win. You just don't know what Shakes is going to do until he does it.
Lantus likes things smooth. Try not to pay too much attention to the preshot numbers - it's the nadirs that count. I had to force myself to learn this - I still hate those reds and pinks before the shots, but our midcycles are looking better and better. So are yours.
If the neuropathy is really bad, make sure you have the right kind of B-12. The correct formula is Methylcobalamin, and it should have no added sweetener. The two I had recommended to me on this board are:
http://www.lifelinknet.com/siteResource ... baline.asp
Zobaline is a pill, so if you'd rather not pill Shakes, you can try this:
http://www.vitacost.com/NSI-Vitamin-B-1 ... lcobalamin
which is a capsule that you can sprinkle on his food. Both of these formulas are a large enough dosage that he'll get the B-12 he needs. He needs a minimum of 3mg a day. The 5mg is fine too - the overdose threshold for B12 is high, possibly nonexistent.
Give it time to work - a month to two months. In the meantime, make him comfortable. If he's having litter box trouble, section off a room or part of a room in your house where he can get there easily. Choose a litter box with very low sides. Carry him when he needs to be carried. He's your patient and needs your care.
He'll come around. Although it's awful to watch a kitty who can't walk, the neuropathy will resolve if you hang in there and give it time.