Hipper than thou

There is no denying at this point that there is something very wrong with my body. The pain has settled in my right hip, the same pain that I felt last week after not preparing for or stretching after the Tufts Health Plan 10k for Women. It had loosened up after this weekend's hike, but after last night's strugglicious 9 miles, it is back and worse than ever. I don't know what to do. I even did a short yoga routine with plenty of hip openers last night in the kitchen post-run. I can barely walk. The half marathon is in two weeks. I just want to ignore this until it's over and then figure out the next step, whether it be a massage or PT or foam rollering or ANYTHING BUT STOPPING.
The main issue for me is that I don't think I'm going to be able to finish the race. I pushed through the last three miles last night by sheer force of will, singing along to "All These Things That I've Done" through clenched teeth. My cardiovascular fitness is awesome, it's just that by mile 7 or so my legs stop working. My feet don't want to pick up off the ground, pains shoot through my knees, my feet ache, my arches fall. I don't want to entertain the idea that I may not be "built like a runner". My tiny, delicate, high arched feet might be causing these problems, but I don't know. I don't know how to fix it. I'm sick of buying new shoes every month or so, but my beautiful new Asics Nimbus 9s just aren't cutting it - my feet are swimming around in the 7.5 size, though the 7s squished my toes. Maybe I need narrow shoes. I don't know.
I'm witnessing and appreciating the affects a 9 mile run has on my mind and general sense of well-being and I don't want to lose that just because my body is being a party pooper.

The run itself was pretty fantastic. That loop around Pleasure Bay is mighty convenient, because it's about 2-3 miles but feels like nothing. It's so beautiful, even at night, and if I need to squeeze in an emergency long run, I can just loop around it twice and continue down the shore. I didn't stop once, and got up to what I'd probably estimate was a sub-9 minute mile several times. I still can't get over how beautiful Southie is at night. Looking at the city in the distance is kind of like a memory summary of my entire three years here, and then I see exactly how far I've come and how much further I have yet to go. I'm excited.