Greend, how old are you? 'Cause as we age, sometime we just start to have aches and pains that don't go away as easily. Doesn't mean there's anything wrong, necessarily. Are you active? Is there an injury that you keep exacerbating unknowingly? I get a recurring pain in my right rib cage that can get aggravated from time to time. Last week it was 'cause I picked up a fairly heavy toddler while babysitting. That motion, while not strenuous, has jacked up my whole right side—again. Doesn't mean there's anything "wrong," it just happens.
You're right that googling and running to the doctors isn't the solution to reducing anxiety, but it's learning how to remain calm and NOT attach sinister meaning to bodily symptoms and sensations that's key to true anxiety recovery—that's why SOME kind of treatment, even for a short time, is so crucial, 'cause sometimes we need help learning how to do that. Retraining the brain—that's the most important aspect in all of this.