Preventing Body Odor?

I am in Thailand, have been using coconut oil, baking soda, and essential oils instead of deodorant. I sweat a lot here in this climate. Funny enough I sweat more with cotton t-shirts or tank tops than cotton dress shirts. I do yoga, play badminton, and keep active. Even after a shower my towels have that sweet vinegary smell. I use mostly organic shampoos, conditioners, and body wash. When I use deodorant spray, I don't have any BO and sweat much much less. But I don't like using deodorant spray.

I eat probiotic yogurt (home made), drink lots of water, eat vegetables, little meat, and very healthy.

I'm going to try anti-bacterial soap to see if that stops it. But I'm wondering if there is something I can do to stop the sweet smell. No one has complained about it, but I can smell it in yoga and badminton. Even my laundry smells sweet. I suppose it's better than a bad smell. But again when using spray deodorant (very little of it), it's gone and I sweat much much less.