McStuff, how long have you been biking like this?

If it's been less than a couple months, then stop worrying about the bike and just keep riding. Your body will need time to break down and build itself back up again.

I'd get at least toeclips n' straps if you don't have them already, though. Having my feet attached to the pedals is probably the most significant thing that's changed my cycling in the past quarter-century.