When starting this game I just wanted to focus on the fun parts rather than complete detail and immersion. No peeing, no messages like "you can't go outside until you put on your shoes, dummy!", no diseases, no starvation, no periods, no depression, etc. I am just so sick of those in the transformation genre.
If I did STDs, I would probably have them be "hot" sci-fi STDs that get transferred to you by, say, a male character who took a pill to make girls addicted to his cock or something, and then that rubs off on you after one encounter and you get debuffs unless you go back to that guy for a week or something. Idk. Stuff like that I would like to do, not herpes.
XCL does have stuff like boob soreness, and some pregnancy related content that borders on detail oriented.
I would guess this is your browser storage being full or something similar to that. So first try exporting your save data to a file (if you have a save you want to keep), and then clear your browser cache, then retry and it should help if it's related to your browser storage.