Don't know, obviously, what's going on with you, but this doesn't sound like anxiety -- it sounds like something is going on. The main symptom of anxiety is anxiety. You're not describing OCD, but if your health suddenly went down the toilet, that's not health anxiety, that's normal anxiety. It's possible this is anxiety, but I don't think I'd give up on trying to find out if there's a physiological cause just yet. Usually, pain and such comes from a long period of chronic anxiety as the body wears down, not at the beginning of the journey.