I wonder if it is a form of delayed pain as I someties get hit hard at night from the day. I am not sure if anxiety meds will help. Unless like for me some of my meds for anxiety are muscle relaxers and if it is a form of tention maybe I have no idea. Random ? do you take your anxiety meds as needed? Just wondering cause I take mine consistent but I guess I have heard of people taking them when they panic. It sounds like you have a healthy routine going. Hopefully it will just ease up on its own. I always prey for that with new symptoms. Many thoughts