I have noticed that recently when I play softball I have an extreme feeling of weakness when I am playing a game. I do not have this same feeling when I am just practicing so I am not sure if it is nerves or a lack of conditioning. It usualy affects me the most as I am waiting to bat, sometimes I feel so weak that I am unsure if i will be able to pick up the bat. I really think it is my nerves but not sure how to tell or what to do about it.