Really high to really low and back

Hi everyone,
I'm having a bit of an anxiety attack at the moment. T.C.'s preshot numbers are very high and then his +4 and +6 are very low. He was at 56 an hour ago and I gave him Karo syrup and treats and dry food and it went back up to 94 after 15 minutes. Now I'm scared about giving him his next dose in about 5 hours. My vet isn't open until tomorrow morning, so I plan on calling then. I'm not sure what to do anymore. I just want my baby boy to be okay. I feel like his life is in my hands and I'm messing it up.

 

I answered on your other thread.