Hi cuckoo,
Although I'm not minor, I'm major and I experience it sometimes (I literally cripple legs), but has not happened to me since an year or two.
Did you got your Vitamin D3 (D) levels checked? As low levels often causes leg pain and problems related to it.
Also you should be taking Vitamin E capsules, I too take and since I started taking, I feel much better for my legs.
-P.