Sev, YEEEEESH!!!

My mom's blood sugar went up over 1000 after open heart surgery. They had her on insulin for a while afterwards. If the stress of surgery makes it skyrocket, the chemo and its side effects probably also do so. Just get through it for now. Do what you need to to get better, and we'll hope you're feeling yourself soon. (Not in public, hopefully.)

It should only get better from here.