About 2 months ago, I noticed that my left armpit had a really strong odor, like awful BO. A few weeks later, my right armpit followed, and they both stink--I have never smelled this badly before! Although my left armpit always smells worse. I shower and make sure to target my underarms, even use baking soda. Then 10 minutes after I get out, the smell is back! My deodorant doesn't work either. I haven't changed my diet and I lead a pretty heathy lifestyle, so I have no idea where this sudden change could come from. Could there be an underlying medical problem related to this? Thank you!