Had a discectomy L5S1 but had nerve damage down anterior of calf ankle heal and anterior side of under the foot. Six months later nerve not restored in ankle or foot and partially on calf. Problem is that when the ankle gets exercised it starts to work but slowly gets tired, at rest (like driving auto) the ankle stiffens up and takes a few mins to ease up; after overnights sleep the ankle is stiff and takes 15 mins to get stability and free movement . Is this normal and will get better. Or is it something I should get a doctor to look at