I hope you forgive me for not believing you. I've been an insulin dependent diabetic for nearly 30 years now, and of course, I have secondary problems like cholesterol and blood pressure, and I haven't been refused by any insurance company all these years. In those years, I've had several different jobs.<quoted text>
I've known quite a few. As you get older, odds are you will have a preexisting condition or two. It makes it difficult to change jobs because you are afraid you will not be able to be re-insured by a new company. One of the best things about ACA was preventing insurance companies from denying coverage to those with preexisting conditions.
I do know that if you ever break coverage for any reason, your new insurance company at your new job may not cover you for one full year. After that one year, they will usually cover your problems that are related to your preexisting condition. The trick was to never be uninsured for more than a month.
My niece has multiple preexisting conditions--some going all the way back to when she was born. She's a waitress working her way through college, and even she was able to get coverage through her company several years ago.