Glad to hear you are ok. I had that happen to me one time many years ago. Yep, scares the crap out of ya!
The good news is, those older, low tech bows can usually handle it. My guess is your bow is probably fine. I'd get it looked at, AND pick up a new one anyhow, and keep that one as a backup if it pans out ok. Can't say you didn't get your money's worth out of it if it ain't!