After getting negative test results for UTI she realized that she was washing her underwear
in bleach. When she would work out, she'd sweat
into her panties and that, mixed with bleach caused a strong ammonia
smell. It's a long shot but I just thought I'd men
It does sound like
a UTI though. Have it checked out. If you don't have a doctor there are over-the-counter meds you can buy for it.