Welcome to the "Wrapped Club"! There are a lot of members here who can support you through those first few weeks and months of recovery. I had the surgery in February 2009. My doctor was also comfortable with my starting solid food right away. I was on liquids in the hospital, and went home on soft foods until I saw my doctor on Day 5. I don't think it would have mattered if I started solids right away, but he wanted to talk to me first.
The main thing is to take small bites and chew chew chew until whatever you eat is in liquid form. Stay away from things that won't chew to liquid. It's so much more satisfying to eat real food...chewing is half the enjoyment. Stay away from bread (toast and crackers are better). To be honest, when I was at your stage, I thought my bagel eating days were over, but now I'm just fine with any type of bagel. The main thing is to remember that your days of swallowing unchewed food are over.
Soda is an interesting issue. I was under the impression that it was out of the question, but there are several people here who were hooked on it and have found that it can be tolerated in small quantities. I think it would depend on how tight your wrap is. Soda is highly carbonated, and those bubbles cause gas that can build up if it has no outlets. Some have opened a soda and sipped it all day...others let it go flat then drink it.
I'm not a soda lover--water is my favorite all around drink, but I have had some soda since the surgery and have been fine.
I enjoy beer, and have found that although it has bubbles, it's not as carbonated as soda. It is no problem.
Be sure to eat slowly, because if you forget and swallow something fairly whole, you might run into a problem. Someone here described it as a "hair ball" that has to be coughed up...not to worry...it'll come up and you don't have to worry.
Getting on the treadmill is a great idea. I started just like you, and increased time and speed as I recovered.
Try to keep busy--read, watch TV, etc...if you can relax into your recovery and let it lead the way, you'll do much better.
We're here to support you, share our experiences, and answer questions if we can.
Stick around! We're happy you've joined us.
Take care and heal well!