I have been having issues in my lower legs, on the outsides, from the ankle bone up approximately 8". Its is a pain that develops the day after a trail run and is most apparent when pushing off with my forefoot. This only happens from trail running and not from road running. I understand that the movements are much more dynamic on trails and my form is slightly different but these trails are not extremely technical (rolling singletrack with a lot of switchbacks/direction change). I have looked into supination/underpronation and am wondering if I might need an insole or a shoe to support my foot differently when running off road. I rotate between three different trail shoes (Brooks Pure Grit, Cascadia, and Saucony Peregrines) and find I encounter the same issues with each. I also use several items to assist in loosening the tissue (foam roller, "rolling pin", lacrosse ball). I would appreciate any advice, especially from anyone who has encountered these same issues or issues similar.