Why am i so frigid? Seeing hallucinations anything to do with it?

i liked his boy for ages, and finally, i went out with him, but when i went to meet him, i felt so ill that i whimpered, ran inside, and got a mega migraine. I started seeing hallucinations it was that bad(i was reading a book and i kept thinking i had dropped it and seeing myself drop and go to pick it up but its in my hand, things like that). thinking i was ill i went home. the following day, i was fine until it came to meeting him, i felt really sick and ended it with him even though i never even saw him? Why am i so frigid? what made me have a migraine? and how can i not be frigid? because when i'm not going out with someone i'm really flirty and loud...? :S:S