Sorry to hear that you got sick recently. I hope you recovered from that well. It sounds like your digestive system was affected in an adverse manner. I just finished writing bfly 2 long postings regarding this. Please take a look at them since I think this might also apply to you. Give it a try, and let us know how you do with it.
I noticed that bfly is 44 years old and you are 43 years old. I wonder if there could be some slight hormonal change that might have triggered this new odor by possibly throwning your digestive system out of whack a bit, or some other way. Nonetheless, you are now facing this new challenge. Let me know what you think about my suggestions.