I have, but in a different way. Rather than physically, my habits and engagements with the world have begun to dwindle. I have dropped out of some online communities; have not held my friends as close (I am off-putting, so I have to work to keep people around); canceled various subscriptions; and I only seem to buy movies, books, and music as gifts now.
Everything is being done slowly. I do not want anyone in my life to have a hint of what is going on. Clean, normal clothing which is regularly washed, and so forth. Birthdays and anniversaries are observed. Holidays recognized and parties attended.
As a saboteur in my own life, I must be above suspicion.