Inaccurate Readings

I have a freestyle lite and I’ve been checking my sugars for going on two weeks, my highest reading ever was 145 because I was just trying to figure out what I’m allowed and what I’m not.

Just took my glucose and for some reason it’s saying I’m 181? I’ve never ever been that high and I didn’t even eat anything to cause a spike other than a half a cookie (which I ate with 3 chicken tenders and 2 tablespoons of honey mustard). I tested again within two minutes and it was 157. Do you guys think my glucose meter is faulty or am I actually spiked that high?

I’d believe it was truly a spike if it weren’t for the difference in numbers within such a short amount of time, but this has NEVER happened.

Edit: this is a new bottle of testing strips but the first one or two I used out of the bottle didn’t give me a crazy reading.