So I should trust your word as best shield, ingnore "sand in eyes", headcache etc. what near reactor happens?
If you're experiencing health issues from your setup, you should stop and consult someone at a nearby university to make sure you're not making yourself sick. Your symptoms are exactly zero evidence of muons. Perhaps you have convinced yourself to your own satisfaction that you are seeing muons; if you wish to convince others, you will need to take some basic steps to rule out other possibilities.