Well, against my advice to stay home a few more days, he did go into work. Although he did go in later though to avoid the crowds at the train station. He said he did ok but the meds he is on made him feel like we was walking through clouds all day. He is on one antibiotic that he only takes once per day and that is the one that fogged him up. He only has two more days on that one, so this too shall pass. I know he was really getting cabin fever. I took him for a drive yesterday and let him take the wheel so he could get the feel of the road again after almost a week of no driving. His incisions look great and he is doing ok walking and bending. I think he just needs to finish off his meds (antibiotics only - no pain killers needed for the last 3 days) and then he'll be just about back to normal.
One tip for everyone, my DH only had a minor stomach ache which he thought could be just a GI bug that might be going around. However, since he has had diverticulitis attacks in the past (and he ate some forbidden candy with nuts) he decided to check it out at the doctors. That's when he found out he had appendicitis - and he was hours from having his appendix burst. If not for the past diverticulitis attacks, he would have waited for the GI bug to resolve on it's own and we all know how that story would have ended. And it would not have ended well to be sure.
So, listen to your bodies and trust your gut (no pun intended)!