Any unusual movement seems to bring this problem on. It is just like cramp and I am usually able to control it by relaxing. I have had this condition for a number of years and it occurs roughly once per month. The problem gets worse each time.
are you stillhaving rib cramps, i've noticed your post for a while & this week i've had something that reminded me of your post. I've been experiencing similar pains & discovered that my mineral balance is out which is causing the cramps around the ribs! Go to the educational site ithyroid.com this will teach you about balancing minerals & i suspect your calcium & magnesium balance is out, be aware though that magnesium can cause problems for anyone with kidney dysfunction, with this our kidneys can't process the magnesium so make sure you don't have this , get a kidney function test, It's just a urine test i think?
check out the site, hope it helps!