Also if you have shingles you do not want to be around anybody that has not had Chicken Pox or been vacinated for it, as they can get them from you! Also if you have shiongles you should avoid being around anybody that is pregnant! You are right when you have chicken pox the virus goes into the nerve cells and lays dormant, but stress, ( allot of time cancer patient on chemo will develop shingles) the virus will become active and appear as shingles, when they come out and appear on the skin
if you will notice they will follow the pattern of the nerve that they were in. That is on reason they are so painful! And they can be dangerous, especially if they are on the face, because they can follow the nerve back into the head and into the brain. Usually shingles appears on a persons side just below the ribs, but they can come out anywhere. The big thing is they can cause chicken pox in someone that hasn't had it or hasn't been vacinated for it!
JdKick it could be a disc problem that your having too, and if it is you need to have it checked out!
Good Luck to You