This lovely diagram captures the last 4 years of (memorable) injuries I've had, ranging from minor (about 1 week heal time) to... less minor (4 months of healing). Note that these do not include toenail ailments (which probably are at 10 by now -- not on all the toes, though).
Also notice that the blue dots are injuries I've had in my first two years of running, and the red is everything I've had within the past 12 months.
I have no idea what's going on. I am racing less frequently but for longer distances and basically running the same mileage in training as before (when injuries don't keep me from doing so). Plus, in the grand scheme of things, I am eating better as well.
"The Ukrainian" thinks it's stress. I fail to see how my lagging career and dissertation (at least to my standards) can affect my running.
And then there's the shoe story. I haven't been able to find a "perfect" pair of running shoes. Even with "pro" fitting, they either cause me toenail issues, weigh me down, or perhaps cause these injuries I've been having. But I've been cycling through a bunch of shoes, so it could be something more.
My current ailment is a pulled hamstring. It wasn't an issue until I was attempting a 20-miler recently and had it cramp on me (I stopped at 13). Given that I have two weeks before my weekend of mud and marathon, I am focusing on getting better rather than being adequately trained. Not like I would expect to do that great given I have two races in one weekend, but I would at least like to survive and not got at overly embarrassing paces.