First, if you dont have a catbox, put 1 in and make sure it’s not perfumed litter.
2nd- If she keeps peeing everywhere, confine her to 1 room for her own good (and for your sanity).
3rd- spray your tub with something Citrusy because cats HATE it and she’ll stop going there. Seltzer or club soda with lemon works good
4th- change your cats food- or this will keep happening
hope your kitty feels better soon!