Echoing what everyone else said, I'd like to know what kind of workout you went through. If you're brand new to strength training, soreness is expected. Make sure to bump up your protein intake throughout the day.
If the numbness doesn't go away, (assuming, as Pookie said, it isn't just a pump), I'd be much happier if you had a professional doc check you out. An all-over check-up is never a bad idea when starting an exercise routine.