Is this normal (contraversial)?

I'm pretty sure that you feel sick because you are repressing your true feelings. If you would just be true to yourself, then it would be a lot easier for you. I mean, some guys will always make you sick though. You said you are bi...I'm sure there are some nasty girls out there who you have thought were gross too. You should just explore your feelings for guys more and not let your phobia get in the way.