is this genital herpes !? anyone please ??

last time i had sexual contact was 7 months ago . i took a herpes blood test 6 months after the act . the reason i done the test is because i had symptoms after a month after the sexual intercourse act . there was a bad rash on my penis genitals. which lasted a month roughly . when i done the test after 6 months i was tested negative for hsv 1 and hsv 2 . i also had it swabbed at a clinic and it came back negative when the first rash was showing . recently i became ill and had tonsilitis , swollen lympth nodes and tempratures , a rash has reappeared on my penis glands and under the foreskin can anyone explain what this rash is . it isnt itchy , it doesn’t hurt either .