Question about shoulder pain finger numbness related to lifting?

I am 21 years old and have been lifting weights for about 3 years now but just recently got really serious about it. For about a week now I have been getting on and off tingling to near numbness in the ring and pinky finger of my right hand. When I woke up this morning to go lift weights I also felt a on and off dull throb in my upper back right underneath my right shoulder. It didnt affect my lifting at all but mostly happens when im not working out.. should I be worried. please only answers from people that know what they are talking about and not stupid short remarks like stop working out. Thanks!