I hope it gets better.
I've had shin splints before, they are definitely psychosomatic. Got them just before a ski trip of a life time. So weird. During and after the ski trip totally disappeared, actually never got them again.
I always get something before a big race too like I hurt my leg or back or something or when things are going well with my training, it's weird. I always hear people talk about some injury or something before a big race then do fine.
Kurite mentioned overhead presses are bad for your shoulders...no shit the next day after that, did some OH presses and my neck went stiff, couldn't even check the blind spot when driving, I had to turn my whole body around to see. Of course I knew it was bullshit but hey, pain is very convincing.