I get sick

So I feel crazy but does anyone else feel sick days after their partner ejaculates inside them?

I was screened for STD's and had an ultrasound and pap smear and everything was normal. Although my fiance and I had sex three times in two days about a day ago and now I smell like salmon down there and and feel sick to my stomach. There doesn't appear to be any infection and we had waited two weeks to have relations. We had them after two weeks and then bam I feel sick and I have a mild salmon smell down there. Am I allergic to his semen? This has happened a two other times in the last six monthsl No abnormal paps or StI's or STD'S it's confusing. No other partners. Can dead semen or sperm cause this? I always pee right before sex and after. I wash up after sex. So I'm confused.