I Get Spasms In My Pc Muscle After Drinking Or

I get spasms in my pc muscle after drinking or eating (so it seems) anything with corn syrup in it. I've had this problem since I was 19. I am now 38 and pretty much stick to water and non processed foods. Btw my corn syrup theory hasn't been proven but I'm convinced. Corn syrup, dextros, dextrin, and malodextrin. If any of those are in my meal prep I get a spasm in my pc muscle. Have you heard of this before and do you have an explanation as to why? Thank you