Normal disgust or ocd?

A few years ago I had much worse hygiene that I do now and got skid marks on some underwear. I don’t remember what I did with them but looking back I’m worried I might have thrown them in with other laundry with cold water and detergent (no pre treating or soaking). I no longer have that set of underwear but I still have all the same other clothing/bedding that could have touched that underwear. I feel really disgusted right looking at all my clothing that I’ve thought was clean, and am worried that poo could have touched the clothing and been washed improperly. I haven’t found any stains yet but feel like I can’t be certain that there aren’t any, and am tempted to replace my clothing bedding/ but I also feel kind of insane for doing so. I’m not sure what a normal person would do since I do have ocd now.