Anything that causes a musician grief when playing is a total bummer. I'm sorry you hav RAI'm 60 with Rheumatoid Arthritis (plus misspent youth playing QB, 2nd base and point guard when I should've just practiced my guitar) I have days where playing is frustrating...AND then I watch Mark Day play like he does with Parkinson's (which is ten times worse than my crap) and remember Zappa's best advice...Shut up and play yer guitar!
Thanks for the kind words Stephen!