I; Have Random Pain And Weakness In My Arms About

I; have random pain and weakness in my arms about 3 inches above the wrist and hands, when it happens I have a hard time gripping any thing. sometimes it lasts for a day and sometimes it goes away within a few hours. I have had two titanium discs placed in my neck at levels 5 and 6 in 2012 for an injury in a car wreck.