Dreams of having sex with a very tall woman

[Rainmaker]

I am 6'5" (1.96 cm) and for a period of 2 years, although i had enough sex, i was often dreaming of having sex with an uknown woman some inches taller than me. Most of the time i was waking up extremely horny and literally forced to masturbate fiercely.
Now i am not anymore dreaming of having sex with a taller woman, but this dream has become one of my greatest fantasies, although i don't have any special fetish about vey tall women.

What is happenig to me, doctor?

P.S. I never have actually the chance to meet a women taller than me