I've been looking at insurance coverage and I can probably get a high deductible high copay policy for about $100/month. But, doing the mental math, I'm not sure I need to do it. My regular doctor has reminded me that there's nothing really left to test. We know I have fibromyalgia, peripheral neuropathy, and IBS.

Not to rain on your parade, but...
...are you certain that you would qualify for an individual plan?
Insurers are quick to not accept anyone with chronic and/or recurring conditions.

My DD was born with atrial and ventricular defects ("hole in the heart").
The atrial defects self-repaired by her 4th year. Her ventricular defect has closed +/- 60% and is likely to be closed by her teens.

However, when I converted from an employer's group coverage to an individual plan, she could not qualify. They are rejecting coverage since her defect has not been surgically corrected. Her cardiologist has no expectation that she'd ever need surgery. She is disqualified for not having something done that she doesn't require.

Speaking to her cardiologist, this is a routine paradox which he not ever seen anyone overcome by challenging the insurers.

What she does qualify for is a HIPAA plan, where if she's rejected by insurers, they have to convert her to a plan. It's more expensive than my son's and my premiums combined and has 2-1/2 times higher deductible.

Even if you're not going to do it now, you may want to go through the application process to see if you'd qualify. Then you'll at least know if you need to pursue alternatives and could be working on those while you're still under your wife's plan.

Also check her plan, I seem to recall that you'd still qualify for coverage under COBRA should you decide to later divorce. It's been over 4 yrs since I waded through that morass and my recall is fuzzy.