I had a lot more pain than I expected. This was mainly because my surgeon doesn't prescribe the narcotic pain meds due to the risk of nausea. He gave me Taradol instead, which is a muscle relaxer. It took the edge off, but didn't even begin to take the pain away.
I'd say I was about a 7-8 the first day, 5 the second day, and back to 7-8 on the third day. The third day was the worst, because I had a 40-mile drive home from the hospital the night before that really did me in.
Thankfully, I didn't have any gas pain at all. I walked as much as I could during the 2 days I was in the hospital, and I think that must have helped.
Some of the worst discomfort was the dry mouth. I remember that every time I passed the sink on my way to walk the halls, I would splash Water onto my tongue. I also kept a wet washcloth by the bed that I would swab my mouth out with when it got unbearably dry. I was much happier once the barium swallow was done and I could drink again.
Now, I'm 16 days out and virtually pain-free.