Is it normal to have Tickly feeling on my bum during recovery after having butt implants? (photos)

Its my 10th day post op, no more pain meds and antibiotics. I never had fever at all too & can now start sitting and bending little by little. So far no more intolerable pain aside from the heavy feeling when i walk too much. What bothers me is that tickly feeling that crawls around my bum especially the side where bruises are present. Its as if tiny little feet are running here and there. What is causing it, and Should i be worried? Is it a symptom of something i need to take precaution about?