Could I be ping a stone?

I think I might be ping a stone. Pain in my flank area(lower back)Pain on my right side, during day and when I go to bed. When I go to sleep and wake up in the morning there is no pain? I drink lots of water during day and it seems like my pee flo isnt strong. Comes out kinda slow. In the morning it comes out great. I been naucus and hurt about mid day. After drinking a boat load of water. The appendix area doesnt really hurt when I push on it. Got an appointment this week with the Dr. Its been doin this for 2 days now. Do you think this is a stone?Thanks for the help! Peace! Gator