noise in engine sounds like rattle

What is your question?

a rattle in engine like maybe a rod for 2 weeks tonight car stop running with tight strenuos squeal let cool off for 2 hours and was able to start it up and go home was at gas station not far but when it first happened would not let me restart it but after 2 hours was able to and rattle still there more and also muffleing would stop a short 3 to 5 sec and come back what could this be