NSAID Prophylactic

For whatever reason, when I hit ~3.5-4 miles the head of my left tibialis anterior muscle starts hurting. I'm going to start reading here.

Plan: Walk 1.5 miles. Run 10 minutes, walk 5 minutes, run 5 minutes, walk 5 minutes, run 10 minutes, walk 5-10 minutes.

Comment: Shins started hurting at 4 miles.
Distance: 5.26 miles (8.47k)
Time: 1:05:38
Pace (min/mile): 12:29