Vinegar smells differently now?

I have been sick for the past week with the flu. Now I'm left with a minor cough and runny nose. Today, I went for some chinese leftovers but couldn't eat any of my general tso chicken because of this smell. I thought it was just the chicken but later in the day I tried to have some mustard with my meal and again I couldn't eat. Then tonight at dinner we had a nice salad but I could not use any dressing because of the smell and no A1 with my steak. The only connection I could make was the vinegar. I usually do not like the smell of vinegar but I do not have a problem eating it. It smells very chemical like and kinda of burns my nose. I actually have puked twice because of the smell. My mom joked that I was pregnant because she said that happened to her with grape juice, but there is 100% no way that I am. I'm just wondering has this ever happened to anyone before?