The question is: Are you having unexplained pain after having been a long term cruiser?
This is a little odd, but a long term live aboard cruiser friend and I discovered we have very similar aliments. Unexplained pain, mostly in the extremities with tingling and numbness as well. One potential name for this is idiopathic or axonal neuropathy, or maybe fibermyalgia. We both cruised aboard for about 10 years and did nearly all of our own maintenance
and many upgrades and refits.
Please reply if you can shed any light on this.