Not really, other than just recognizing it for what it is - hyperbole - and that being that, you can’t get so worked up about it.
It’s not that people don’t have side effects of highs, but they’re generally from being out of whack long term, not momentarily, and many people have out of control diabetes their whole lives and never have ANY side effects!
The docs were trying to do you good by scaring you into maintaining control, but if they’re like some of the ones I had, they went much too far in trying to scare you, to a level that was both psychologically harmful rather than helpful, and verging on falsehood as a matter of what we know to date about diabetes and long term side effects. Just remember this - being high for a few hours won’t kill you, just like doing a little drugs or drinking a glass of wine won’t. Our bodies are remarkably resilient, and you should not be panicking at 160 - frankly, your blood sugar should, IMHO, NEVER inspire panic unless you’re WAAAY high for a whole day (in which case perhaps you’re sick and should check in with the doc).
Aim for 100, see if you can keep it between x and y [fill in comfy numbers for you with your doc], but recognize that no one stays between those numbers all the time, and a lot of the scare tactics and stories they told you came from long before we had modern treatment technology and from people who were waaaay out of control for many years by today’s standards.
And most importantly, avoid the seizures - they can kill you, seriously. One of them fractured my spine (ok, an idiot paramedic who strapped a seizing person to a gurney did, but I never would have been there if not seizing), and I’m half an inch shorter now, and lucky not to be paralyzed. You could seize, fall over and crack your skull, SERIOUSLY. Keep this in mind - ask your doctor, but I’d think it would be better to average 120 and have symptoms at 75 than to average 80 and not get symptoms 'til you’re on the floor.
Disclaimer: Not medical or legal advice, I don’t know jack, other than being a diabetic myself for 25 years so far. YMMV. And good luck.