Is it normal for some swelling and bruising to spread away from the procedure area after my mini arm lift?

On the fourth day post op, I noticed that some bruising and slight swelling on both arms had moved down to my forearm. I don't feel any pain from it and it's also not sensitive. I just found it odd that it was not there for the past 3 days and now it is. I also asked if a nerve pinching pain in only one elbow area was normal after this procedure. The compression garment felt too tight at first, but is now much better. My doctor said the sharp nerve pinch is normal, but it still worries me.