identity

i’m a lesbian, i have crushes on girls and all that jazz.(sorry i’m awkward) anyways but there’s always something in the back of my head like well maybe i’m wrong maybe i like guys or something. i dated guys in the past but that was usually to cover up me being gay and they usually lasted like a month 😂. but their are some guys that i like them a lot (platonically ) and i’m like maybe...?? but then if i think about dating them i get grossed out. and i WOULD NOT have sex with a guy. and i know this but for some reason there’s always a voice in the back of my head that’s like “your straight, your not gay” idk is this normal???? thanks x