i thought you were more inshape now so thus you cant play better? could be a built up of the heme-iron in your system leading to lower potential hydrogen
the lower potential hydrogen or PH balance the less we are able to synchronise with the suns omnipotent energy
back in the day i was able to move between my dorian, ionian, and phrygian modes very quickly. Today it's more about filling 16 bars of a lead with something melodic and moderately impressive. If I played 16th notes over "Last dance with mary jane", I wouldn't get much work.