I am 30weeks. I walked too fast yesterday because I was little bit late for my appointment. Finally…

I am 30weeks. I walked too fast yesterday because I was little bit late for my appointment. Finally I made on time. However, since then.. my right side of back is hurting sooooo much. I am at work now and it s pretty painful to step on the right foot. What did I do to myself.....geeez.......I hope this pain goes away soon....I wanna cry...😢😢😢