Smelly armpits associated with kidney pain

Name: 
Kate
More information: 
Hello! I am a 28 y/o female in Austin, TX. Up until a few months ago, I never had problems with body odor. After working out or sweating outside, my armpits would produce a smell, but nothing out of the ordinary. In April of 2017, I began to notice a few symptoms begin all at once. I began have chronic flank/kidney pain on both sides, frequent urination as I went to bed in the evening, and, the worst of all, extremely bad armpit odor. Since this began it has been almost a nonstop problem. I'm not saying every once in a while, but it has been constant and both armpits smell like an onion. The smell cannot even be washed away at this point. Vinegar helps temporarily but it always returns. Thoughts on the kidney connection?