Yes
and if soy is causing cramping keep on eye on peanuts and legumes since they're all part of the same family. I don't have a problem with the occasional soy milk in my coffee but I can't drink soy milk every day or eat soy-based products on a daily basis.
Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, champagne in one hand, strawberries in the other, body thoroughly used up, totally worn out and screaming: "Yeah Baby! What a Ride!"