Although I don't know what it's like to do teaching full time, I know that I've really enjoyed my occasional day gigs as a 'visiting professional' (ha) who talks about pair programming and great software development practices.

Then again, it may be that you want to move into a totally different field .. I sometimes see situations where folks exchange jobs for a few days, and some of those jobs can be pretty cool.

Dealing with pressure is never easy. It could be that you just need to change your place of work, that you're already in the right field.

Whatever it is you end up doing, good luck!