s quite true that some other issues or symptoms may be an indirect cause of
memory problems, especially poor sleep quality,
and I agree it would be good to track these down to see if rectifying them to the extent you can provides any relief.
In any case, memory failures and other cog issues are a huge reason people leave the work force, the other being plain fatigue. So they shouldn't be overlooked. I think you do need a conference with your neuro.
Best of luck.