some weeks ago, I was playing my guitar while sitting on the border of my bed, facing towards my bathroom. At some moment, my mom came into my room carrying a trash can full of bathroom waste, so she would collect more trash. However, as she passed in front of me, the guitar neck was facing the trash can my mom carried, and I, by reflex, turned the guitar neck away from that position and continued playing. Thing is, obsession kicked in after a short time: I became worried with the the idea of the guitar's headstock touching the dirty paper inside the trash can and being contaminated with microbes and tapeworm eggs( which I fear the most, because Im so scared of neurocysticercosis and losing intelligence, personality and everything). Because of this situation, I have not been able to touch the guitar and play it anymore, because I judge it as contaminated. On the other hand, some part me doesn't believe it could have touched the contaminated material, because the trash can was moving, and would have felt it as it collided with the guitar, right? Should I control the urge to clean it?