someone help me - I'm about ready to scream! I don't have a spreadsheet (no computer access and I can't do it on my phone). Until recently Tiger was doing great, his numbers were in the low to high 200's. I varied his dose depending on his numbers, and he was pretty stable. Just over 3 weeks ago his numbers went crazy - high 300-high 400s. I've struggled to bring him down, with little success. I even stopped dosing for a couple of days, in case he was continuously bouncing. Without insulin he was in the mid 300s. On Sun he was 393 pre, I gave him 3 units which got him to 229 +8, and 348 +12. I gave him another 3u. Mon pre was 394; I gave him 4. +6 he was 219, +12 138! I didn't give him any insulin. This morning he was at 474 pre, I gave him 4.5. At +4 he was 461, +9 he was 201, and just now at +12 he is 102! I can't give him any insulin at that low a number. I don't know why he is doing this, some days he only drops 100 or so and rises higher than he was in the morning, and others he drops slowly all day. He only eats pate Friskies, and seems fine in himself. Help?