Thats quite a big migration, but if its not causing you any pain, I wouldnt be too concerned.
What you might wan’t to consider coralling it with some chuppa chup 
sticks and some tape, then smash back some prenatals, Jelly (Jell-O) and some Vitamin C
Looks close to P11, (the other side of the tendon) which in my opinion is a good spot.