John Cena's Injury Legit?

When it was announced a lot of people that that the new neck injury of John Cena was just a storyline but it does seem that this injury is legit. Even before Summerslam the wrestler was suffering and he is not 100% cleared to wrestle. This is why he was taken out of the WWE scramble for the championship match and Rey Mysterio was put in instead of Cena. We are talking about what was announced as a herniated disk in his neck. My mother had something like that and it was really painful with a long recovery span. We just hope John Cena recovers quickly!