Turns out that my left leg is shorter than my right by 1cm. My chiropractor theorized (and it makes sense) that my pelvis has been sitting on a slant for some time now, and that cumulatively over time it has been placing more stress upon my left hip. It's the kind of thing that a regular day to day person wouldn't notice, but footbag demands a little more from my body...
I got this thing to put in my left shoe to balance out my pelvis, back, and shoulders...and my hip is already seeing improvement. The doctor says that if I keep it up with the balancer, alongside stretching and icing daily, I should be back to footbag in a little over a month (around Hackrifice).
I've been dealing with this fucking hip for long enough I think, I wouldn't complain if he said I'd be back in a year. As long as I heal.
I'm tired of worrying about whether I'm going to injure myself.
Anyway. That's that. I really hope this solves my problems, and I remain optimistic.