I can't tell you anything about why your bite is off and if you will need something done to fix it, but I must say, be VERY glad you were off your pain meds after 2 days and eating solids! I was on the pain meds for over a week, I was in so much pain after having all 4 removed. Hopefuly you won't need anymore work done. But I would probably just wait it out to see if your bite is still off after your mouth completely heals from the wisdom teeth being removed.
I agree with Amp! I had my wisdom teeth taken out a few years back, I only had the bottoms. I was on pain meds for over a week and looked like a bulldog with all the swelling. I'm glad your feeling better!
My wisdom teeth were removed about a month ago and I started to notice that my teeth were feeling loose the next day. By the time my bite was 'off' like you are describing, I was really worried that my teeth wouldn't go back into place. I wore my retainer day and night for a week after that and everything went back to normal.
From what I could gather from years of being prodded by orthodontists, if new space is created in your mouth, the other teeth have a tendency to move into that space. That's what I assumed was going on, but don't take my word for it! You could always call the surgeon and as for his/her oppinion. :)