I need help or advice

I am 8 weeks 5 days and I work in an office and sometimes it can be high stress other times it’s calm... but today my floor sup put me to work with one of my doctors who stinks really bad B.O and I told her in the morning that I couldn’t stand his smell and if I could work with another doctor she told me no and that I should wear two masks... all morning I felt like I couldn’t breathe and my mouth was completely dry... I went to lunch and when I came back doctor smelled even worse I once again spoke with my floor supervisor and I told her that I couldn’t breathe wearing two masks, my heart rate was raising and my mouth was completely dry and I felt like I was about to faint... she then says that if I don’t want to work with him then I should tell him also about his body odor... so I ask him if I could speak to him in private away from patients I let him know very respectfully that I couldn’t work with him because if his body odor he starts to yell at me and telling me that I couldn’t speak to him that way I told him I wasn’t being rude about the way I said it he kept saying he was my boss and I told him that he wasn’t my boss and if I couldn’t work with him then I should just quit... I told him that all I did was doing as I’m told, I was told to talk to you by the FS, now I’m spotting again... can I ask my doctor to place me on light duty?