John (and all)...I don't mean to scare you, BUT...IF your doctors start telling you that you have "electrolytes imbalance", they have trouble controlling it, and it becomes chronic...
There is a type of cancer that does that. It got my friend and mentor, Don Zipoy, and I'm pretty sure that was also the type that got George Aldrich. It's not common enough for most doctors to recognize that from the symptoms, which has not resulted in a good outcome for my two friends. IF this problem continues, get yourself to an Oncologist ASAP.
I hope the change in your BP med fixes it. Often, finding the correct BP med takes awhile, because we react differently to them. I am on at least #3, and to be honest, I didn't think I had a problem with any of the previous ones. This has lead me to think that maybe the drug salesman did a good job of selling to my doctor....or maybe made a "donation" to his retirement fund?
Steve
PS: I always used a Thunderbolt R/C (idlebar) glowplug in my .46LA, but would use any suitable OS or Enya glowplug...except for their relatively high price. K&B glowplugs are made by the same company as Thunderbolts, Ohlsson Corporation. Good stuff, IMO. Avoid Fox glowplugs at all costs, in case you stumble over some at your LHS.