I mean, I have gotten sore on Mondays from my walking on Sunday before, but not often and never as strongly as now, so it's a safe bet I walked a fair amount more than is typical of me. Furthermore, though my pace on the treadmill was a leisurely 2 miles an hour, and my guarding pacing is a little slower than that, I may have walked a little bit faster when I was walking around the lake, so pace may have also played a part.
...Still, all the same: definitely worth it. The change I'd say is actually a positive one in my life, and one thing which I think is actually healthy. The rest of my day yesterday was spent reading a new webcomic. I'm nowhere close to being finished (I believe that two years ago, there were at least 750 comics, and this is for something that updates at least theoretically two or three times a week, so multiplying 52 by 6 or so, and...well, you get how many there are now, and I'm way back in March 2013 which is probably in the lower half of the hundreds), but it's for a high-quality comic so I don't mind so much.
The webcomic in question: Go Get A Roomie. (Warning: Most definitely NSFW. In many, many ways. Though, the nudity present is tasteful in nature and as far as I know in the entire comic there isn't any genetals on display.) I could have read more in a single night, but the point I stopped off on was such a strong point that I realized I was never finding a better place to pause than right there.
Good news: the comic can be uplifting, as it is very easy to identify with both of the main characters. (I almost feel like LT is a fine representation of me in person wereas Roomie is a fine representation of me online.) It has some very strong, philosophical, yet peaceful and loving comics, where through a combination of metaphor and subtext and blatant context (as in, explicitly stated), powerful messages shine through.
Bad news: there goes the rest of my day. I'm going to get caught up, and catching up there means time not spent elsewhere.