Tibia fracture. Problem futur!

Sir,my self chandu  a police employee so my problem is 2years ago in my training time unfortunately my leg is injured and the doctor examined and he say it's a leg fracture (hair line fracture in tibia )he gave some medication and plaster of Paris bandage on my leg and he advice takes rest of 20 days on that time after 20 days I went re checkup and he takes x ray and he tells it is cured and take some precautions so I completely rest in those days and it's never come any minor pain at that time and the problem is recently 3months back my leg is very pain of my continue duties 24/7 the pain was very very severe and I consult a doctor recently he examined and suggest the x ray he saw the report and tells it's a stress fracture and he advice take some rest don't run and didn't any pressure in your leg and the problem is my duty is police 24/7 available on duty my higher officials did not gave any leaves at this time so  what is stress fracture it's curable are not anyfurther problem futur