First of all, if you feel your job is threatened, you should very quietly and very actively start looking NOW. It’s a jungle out there, but you as a person with a job have a HUGE advantage over everyone who does not. The discrimination against the currently unemployed is worse than ever. Look now.
Secondly, you’ll be legally able to buy something called COBRA coverage for at least 18 months if you need it. Basically you’d pay close to the same rate as the coverage costs your employer for the coverage. So if your plan costs $400 per month and you’ve been paying a percentage of that, your employer must allow you to continue to buy the coverage for $400 per month for at least 18 months. Some states have an extension, for example California has something called Cal-COBRA which gets you another 18 months after Federal COBRA runs out.
Google COBRA and your state name to see what’s what.
Some states have laws (Washington is one) that require insurance companies to provide you with an individual policy without even asking about pre-existing conditions IF you are coming off of COBRA (have exhausted your 18 months of COBRA). This is a great boon to diabetics who might find diabetes care excluded otherwise. However, these policies can be pricey. I have an HMO which is over $420/month, but the “big blues” sell similar policies that are over $800, and when I turn 55 in August, the rates will JUMP several hundred dollars.
At the very least I’d be socking money away into a “what if I need COBRA” account. Figure out what your employer pays for your policy and save until you have at least a year’s worth of COBRA premiums. You must NEVER miss a COBRA payment or you’ll lose your coverage. Not good.