Pains in Legs when Hungry?

Ever since I was a child, I have always developed mild aches and pains in my calves whenever I haven't eaten for a few hours and start to feel very hungry. When I get the aches and pains, I always feel quite weak too, so was thinking it could just be from low blood sugar levels. But I've never heard of anyone else getting aches and pains in their legs from low blood sugar? It is obviously nothing to worry about, as I have been getting these 'hunger pains' for over 30 years now. I am just intrigued as to why I get them and wonder if anyone could tell me please.