Me too. I have a second primary breast cancer in the same lumpectomy and radiation breast after 6 years. I had my mastectomy May 20 but did not heal right. So another surgery Aug 4. I have hideous underarm smell. Never sweated much or hardly any bidy odor in the past. A little dove or secret worked fine. Nothing works now. I too have a super hypersensitive nose. I smell evetything!!! I thought maybe covid related not losing but messing with my sense of smell. However, it has only been that way months leading up to this diagnosis of breast cancer. I did read a study that shows a relationship of the hypersensitive smell and breast cancer. I cried when I read it and your talk about smelly armpits. I have to get some of that crystal deodorant to try because it is so bad it makes me cry. I see surgeon again Wednesday. Will bring up as I know now I am not imagining things or crazy. I too am worried it is somewhere else as my good side smells worse than mastectomy side. Not at all your normal body odor. I am having hot flashes and nightsweats too. Not helping. From my medication. Anyway, you helped me alot.