I went out this morning hoping to run another 3 or maybe 4 miles without pain but today my knee started getting sore at a little over 2.5 miles so I quit at 2.7. I didn't take any ibuprofen this morning. I wonder if I take ibuprofen and run a few more miles, if it would heal faster or slower, than no meds and less running? I was more worried about my hip flexor after the marathon but it seems to be giving me no problems. My knee felt good on Monday's run but got sore that evening while hiking downhill out deer hunting.