Hi Jon. It sounds like you are on a similar roller coaster recovery that many of us experienced on our way to happy endings (I am now coming up on seven years). When you quote "no restrictions", remember that most doctors refer to that starting at six months or one year after surgery. You mentioned that you were at twelve days, at which point you are just barely starting a long healing process that will involve many varied pains and sensations as your body heals and adjusts. The soft tissue will continue to heal, change, and remodel for a good 18 months, from which perspective 12 days is barely out of the starting gate.
I think that it is great that you stay in touch with your surgeon and his PA just to make sure that nothing is wrong. Even if things are just fine, this contact is important to put your mind at ease.
Good luck on your recovery, take it slow and easy for those first few months, and don't be surprised if you experience the occasional roller coaster.