W H Y ???????

a couple hours ago I checked my BG a couple hours after eating dinner, 145 ok checked it again about 30 minutes later, 125 sounds good checked it again maybe 2 hours later 195???? 20 minutes later 230?? what? I haven't eaten anything for maybe 5 hours why is my BG suddenly high?? I have had my pump plugged in the whole time, drinking water, new site put in this morning (but it has been working the whole day this far)

Share ideas if you have any, but I'm mostly looking to rant thank u