Senior citizen - we've all have done this he said it was hidden in tall weeds sometimes you just can't see these things until its to late. You should be more considerate to the people who come here looking for help, not trying to push them away.
To the OP I am glad your ok I bet you will find this a quick fix I would replace the mandrel, blade, belt. And definately inspect the other pulleys and mandrels for stress damage as said above if your going to have the deck off might as well give it a good cleaning and change the blade belt.