I would make an appointment too.
It still does not have to be anything serious, maybe its just taking longer to heal then expected.
But not knowing and suspecting or fearing something can play some evil tricks with the mind,
a visit to the doc to get facts will help soothe that a bit,
and if there is something that isn't as it should be at least you will know what you can do about it.
Then its a matter of frequency too … is it permanent / every night / only now and then?
Is it also when you gently push down on the spot,
is it when you push harder,
does it only happen at night when you are **83** and your mind has time to worry about things (I.E. when your subconcious fears have the a stronger hold on you)
Maybe its nothing, maybe you just need to hear it from the doc and give it more time.
Good luck