My body is cashing checks my ego can't...wait...what?

I started lifting weights last year for a variety of reasons but mainly because I was developing under-arm jiggle and it scared me. I built up to a 3-days a week weight-lifting routine, which I actually enjoyed. I find lifting weights very satisfying for some reason. Anyway, now that I am running so much I've cut back to just once a week. Normally I lift weights on Sunday, so that I have Monday (a rest day) to recover. Since I ran on Sunday, I lifted on Monday, giving me no day to recover between lifting weights and running. And just to clarify, I don't do the wimpy girly weight-training where you do like 30 reps of a 10-pound weight. I do a reasonably comprehensive set of exercises at pretty much the max weight that I can, so I tend to have muscle fatigue the day after. Generally I kind of like the feeling, as it isn't painful at all, just a noticeable kind of tiredness. Makes me feel virtuous. But add that to my still-tender little legs and you get a BAD RUN. BAD BAD BAD. Did I mention my run yesterday was BAD? Ugh. I almost called it quits at mile 2, and my left hip still hurts. I'm trying to decide whether to attempt my five miles after work today or skip it as a precaution and ride the exercise bike instead. I think I will warm-up and see how I feel. I have a tendency to obsess about things - right now I'm having a very strident internal dialogue about whether skipping one little mid-week run will derail my entire dream of running a marathon. (It couldn’t, its just five miles in a training program of hundreds of miles) (Are you sure?!) (Yes. No. Yes. Well, maybe.) (What if it did?) (Well, what if I do run and I aggravate my hip and I can't train for weeks?) What if, what if, what if? Sigh. My internal self needs a good slap across the face.