WhiteIris
could you be allergic to the condoms, spermicide, lubrication...that you are using? did you use any new soaps, body wash, detergent, fabric softener?
Just a general rule, smelly fragrant soaps are highly allergic and fabric softeners are contaminated with heavy metals such as mercury.
anyway, i hope that something makes sense here, maybe I've given you a clue.
hopefully, it will be gone soon. let me know if you have more ideas.