I'am taking probiotics, cran pills, nettle leaf pills (flushes out bacteria n keeps uti health) and vagina smells like onions??? infection still?

Try something else: There are no natural remedies for possible vaginal infection, if you do have one. Probiotics are good to recolonize gut bacteria. Neither cranberry or nettle leaf have been shown to reduce/treat UTI's. Proper hygiene is important. The best thing you can do to find out what may be wrong down there would be to visit your local physician as soon as you can for a proper exam and workup.