Weird. We've had discussions in the past on the interaction between skin and frag, and I don't think there's a consensus. However, your case seems way beyond any reasonable variability.
It is possible that you have a "bad day" - sometimes one eats something one shouldn't, etc. Or it's also possible that the perfume is off or defective (in which case it should be returned). Did you spray it on paper? If it smells bad on paper too, then it's the perfume.
I think No 5 may have been reformulated, since jasmine is now forbidden. But this doesn't explain your impressions.