If you start having back pain the best thing to do is give it a few days rest. If you just take a few pills and keep going you will very likely just injure it more until one day you can't get out of bed. For anyone having back problems here is an excellent source of information. It is on a back surgery site, but there is a huge amount of articles on preventing and dealing with back pain. Hope you find something that helps.

www.herniateddiscbacksurgery/herniated-disc-relief