Hey girl! im so sorry you're going though this, you and I are in the same exact boat. I had success controlling Body Odor when I went on birth control pill. The PCOS hormone imbalance was making me REEK and as soon as I went on birth control it was fine. For a time anyways (about 3 years). Its not an option for all women, some women are against birth control, which is fine just something I thought I should mention to you. You decide if that is the option for you to try.
I am again struggling with severe Body Odor (rancid hot raw onion smell that i cannot detect), but this time I am trying to fix it through my gut as my husband wants kids so BCP are off the table for now.