This is a very interesting question because ever since I was a kid, this has been exactly the reasoning that was in my head, whether it makes sense or not. Every single time, if I felt sick and had d*, I would be so thankful that it wasn't v*. If anything, having d* would greatly calm me down psychologically, even if it didn't make me feel any better physically. It's not out of the realm of possibilities that the psychological element alone may have actually prevented me from v*ing on many occasions because I wasn't sitting there worrying myself crazy about it.