I Recently Fell After Helping Renovate A Home, The Wood

I recently fell after helping renovate a home, the wood was
Warped and I fell through the wood floor, my knee was stuck for. 3-4 minutes before they could pull it out. I have bruising and it hurt but now two days later I feel like I have a fever and bad body aches almost like a flu. Bowlel movements have increased and stomach pain which I thought might be the nerves