Suggest Treatment For Chest Pain And Swollen Abdomen

I fell asleep today on a wood crate with my legs hanging off the edge on my stomach for about two hours. (carpenting i got few hours of sleep) and have been sleeping alot all day. Iv been drinking pklenty of water as well. I choked on a bit of water for the same reason a few hours later and now im experienceing chest pains. I feel like my lungs are about to burst and the upper of my stomach feels swollen. My ribs feel like theyre burning when i exhale. Its hard stadnding up as well. Do you know what went wrong ad what i should do? Im really scared of even sleeping as this point.