Concerned

About 2 days ago, I plopped down onto my bed really hard and hurt my rib. It hurt pretty bad, and started to hurt again yesturday. It feels hard for me to breathe sometimes. I noticed that in the last couple of days my baby hasnt been moving as much since that happened. Should i be concerned? I feel like he has barely moved at all. Any movement i have felt could easily be debunked as gas. Do you think that fall couldve hurt the baby?