Was walking my dog (or rather, he was walking me) and slipped hard on my back on ice. Did not hit my head (so lucky) - landed only on back. Worried that maybe I suffered whiplash (as my neck really hurts). So paranoid that I've suffered another concussion. Was doing so well (vitamins, exercise has helped) lately, too.

Is it possible I could have suffered a concussion? My last major one took like 10 days to truly manifest (and was the worst experience of my life - I went into some sort of psychosis).

Thank you.