What Is The Cause Of Pain In Arm And Tingling In Hand?

Hi!
Yes - if you could answer this question. My name is Fran and I walk often. Last April I was taking a walk on a dirt path in Yarmouth, MA. I tripped on a tree root and took a hard fall. I put my arms out to break the fall. I thought I had broken both upper arms it hurt so bad. I could move my arms and saw no sign of fracture. The pain eased up but continued to hurt for about a month. My left arm is fine but my right arm continues to hurt at night. It's an aching throbbing feeling. I end up taking some Ibuprofen or Aleve. I tend to sleep on my right side so I think it may be the weight of my body. I, also, sometimes get a little tingling in my right hand. I still work out 3 times a week and lift 10 lb. weight and do pushups. My arm doesn't bother me during the day - just at night. Do you think this is muscle, tendon, or nerve pain and do you think it will eventually go away?. Should I stop working out with my arms for a while and, if so, how long? Thank you for your help.