Three weeks ago I was put down and a knee put to my chest with all the weight of the person on my chest and bounced on once or twice . I had hard time breathing during it. Everyday I have a hard time. My chest it is hurtful to move or anything. I have no insurance no money or no doctor. If able please help me not hurt. God bless. What can I do

Is there a free clinic in your area? I'd start there.

You may have a broken rib or two. After an Xray, it would be taped all around your chest, just to hold it while it heals.
You can buy something like an elastic knee wrap (maybe 2 or 3 of them) but it would be best to have an Xray.

So you go to the ER at the government backed hospital, who must see you. They will bill you, and you can ask for it to be forgiven and/or set up a payment plan. (depending on hospital )
Assuming if you are in the US.

Also why do you not. If you have nothing, there is free government health care (medicaid) for poor people in the US