Rib Pain ?

Haven’t really done anything at all. Did my dishes and wiped down my kitchen before picking up a few light toys of my daughters off the floor. I go to walk outside to throw away a poster she made but is done with and I stopped in my tracks with excruciating pain in my mid back seemingly right at the base of my ribs. Pain isn’t subsiding even sitting and is just about completely unbearable when I’m walking. Just keep having to ask myself everyday what in the world is going on with me.