Well if this man has a history of this medical condition it would probably be recorded somewhere wherever he is from or by someone who knows him. If there is no evidence of this in his history then is not possible that this is a miracle. Now, just because some things related to Medjugorje are rather questionable, it doesn't exclude that some things may be legitimate. These things related to Medjugorje just seem more and more complicated and confusing as they go along.