10 years ago I cheated on my bd I had my first with ..

he cheated on me so I had a baby by a different man and he came inside me and I had a baby by him but he loved me so we stayed together and after I had my other bds baby we had another baby together again but we’ve been having unprotected sex we both took std test 10 years later and we are both negative on STDs . But I feel like my second bd did give me a std idk y I feel like he made me have symptoms but not showing on our test and I feel bad