It sounds like you have several compounding medical issues which could influence your ability with a pistol, and have an eye out for indicators in your day to day activities.
Hopefully a lot of folks see this thread and take it as a reminder that mundane and familiar activities we take for granted can serve as indicators for undiagnosed medical conditions.
An example in my own life - my uncle, father, brother, BIL, and I hunted coons over hounds together for many years. My uncle and I were most typically our “designated shooters,” with the two of us separating most often as we broke into smaller groups/pairs to walk opposite sides of a high water creek or river - one shooter per group. We noticed, but didn’t say anything, when he started asking my BIL (a terrible shot) to take the killing shots more and more often over a season. By February he wasn’t even carrying a rifle any longer. He wasn’t “old” by any stretch, just 52 yrs old, in great physical shape with a high activity job and high activity hobbies, so we thought it a bit odd he’d “pass the torch”, but we didn’t ask. By the next winter, we could only take him on a few exceptionally limited hunts where his power chair could travel, as a last wish effort together. He had started asking my BIL to shoot for him because he noticed he could no longer hold his rifle steady, and didn’t want any of us to notice. He didn’t want to admit something was happening. He was diagnosed with ALS at the start of that next hunting season, and gone by January. ALS treatments are largely untreatable, but having an extra year head start on it may have made a significant difference. If we’d have gone in when he started noticing weakness in his hand, he might have been able to watch his daughter graduate college. His son graduate high school. His daughter get married - all within the typical survival expectation for an early detection ALS patient.
Possibly another example in my life is a reemergence of my stutter, loss of dexterity and sensitivity in my left hand, and worsening vision in my left eye in the last 6 mos. I’ve had a great number of TBI’s in my life, linked to over a decade as a professional bull rider and over 25yrs in grappling and striking sports (BJJ, Kids, HS, and College wrestling, Judo, amateur mma, kickboxing) - and a doozy of a TBI in a car wreck when a drunk driver crossed the centerline at over 100mph, which yielded a stroke later at the hospital (don’t know if it ruptured a pre-existing aneurysm or caused wholly by the wreck). I spent 3 years in speech therapy to overcome a stutter after the stroke, which has suddenly reappeared after 20 years, despite no TBI’s in the last 6yrs. I’d tracked my condition with a specialist during my bull riding career, so we’re back again now revisiting my old scans to see if I’ve slipped into neural degeneration. Super fun stuff to consider as a young-ish engineer with a wife and a 6yr old son, but getting in front of it is a lot better than ignoring symptoms until it’s too late.
Watch yourself and watch your friends and family. If something changes, it might be worth taking note.