https://wiki.project1999.com/Magelo_Blue:Shamwowi
That's your current magelo. If THAT is what you were parsing with that would actually make some sense. THAT magelo has 250 displayed ac (not worn ac) more than I have. If that is the case, that I can understand. If that is what you did though, you have to admit that your gear is NOT what a typical shaman leveling from 55-60 can expect.
Please let me know because if that is indeed what happened I will apologize for accusing you of lying. In that case, me taking 22% more damage would absolutely be expected.