ocd rumination/health anxiety spiral

hi all, to preface this post i’d like to mention i am diagnosed with ocd & i have issues with rumination & health anxiety as well

i’ve had a fear of a bat crawling through small gaps between my wall & floor & scratching me or biting me when i’m asleep & giving me rabies without me knowing it. i’ve tried to rationalize it in my head but everything i read says that their bites can be microscopic & so can their scratches so…what am i supposed to do? it feels like i could die from an illness that probably causes the worst death imaginable & not even be able to fully prevent it at all. i’ve been losing sleep at this point, i feel hopeless & im just afraid all the time.

any advice is appreciated