Student or Learner
You can use a reflexive pronoun to refer back to the subject of the clause or sentence.
1- Diabetics give themselves insulin shots several times a day.
2- I asked myself why I had faxed invitations to everyone in my office building.
do they act as objects too?
THANKS IN ADVANCE
Collins Cobuild says "You use a reflexive pronoun to make it clear that the object of a verb is the same person as the subject ..."
Oxford Guide to English Grammar says "We use the reflexive pronoun as object or complement when it refers to the same things as the subject"