What Causes Pain In The Calves Upon Standing And Running?

I ve been having pain in my calves for the past several weeks. I think it s been longer than a month. It happens whenever I stand up, run for more than about ten seconds, stand still for too long (about a minute, give or take), or walk for a long time (half an hour if I m going at a steady pace and there are no hills.) About two days ago, I also started experiencing pain in my upper back, near my right shoulder blade. Lately I ve been having trouble sleeping as well-I ll fall asleep after several minutes, then wake up again not twenty minutes later. Each time I wake up, it s harder to go to sleep. Even when I m dead tired, I can t fall asleep for a while.