Eggs and various meats including sulphur vegetables do contain mercury.This has been shown to be true to me from repeated tests using a mercury vapour analyser. On this basis I think it is wise to eat these things with caution and to look at avoiding eating them if problems still persist. A diet that relies heavily on them may be detrimental to recovery. It is possible to get certain fish and probably purely corn and grass fed animals which may have very little mercury in them.