Many things that one can contract from a vaccine are just as likely to be contracted from the natural virus. For example, it's the case that the vaccines induced myocardia, but the native virus did as well. Often, the question comes down to whether more people would get it with vaccines or without.

In the case of a virus that was as infective as this coronavirus, if your wife got Raynaud's from the vaccine, the virus likely causes that as well, and I would say more people would get it from the virus spread than from the vaccines.

That's not always the case. H1N1 vaccines in Scandinavia caused permanent debilitating narcolepsy in 1/400 people. The H1N1 flu also caused it in about the same ratio, BUT there was no way the entire population was going to contract H1N1 that year, it's more like a usual flu with 10% penetration each season. Sadly, half the population got that vaccine before they figured out the problem, so many more narcolepsy cases than there would have been, and fully attributable to the vaccine.

Some people claim that vaccines caused their kids' autism. We also know that populations that get widely vaccinated have lower autism rates. The second point is often used to refute the first, but it does not. The one actual known cause of autism is having had rubella during a pregancy. There is live rubella in the MMR vaccine. It's attenuated but still, who knows, could possibly cause autism in individual cases and yet still reduce overall autism in the community when vaccines are administered by reducing overall rubella transmission.