>>138620
you should really work up your running starting with maybe 5 miles a week and by 10 weeks you should do max 40. running is harsh and you probably just have shin splints which is extremely common for military people.
my suggestion is look into the best possible shoes with the correct shape and cushion according to your weight.
then practice on running tracks and avoid grass because of the holes.
heres a pdf and some shoe advice
this is the staple book for runners in all areas
water and milk are your friends