Please help me do i have HOCD??

Hi i am new to the forum, i just joined today and i need serious help!!

Ok to start off i am a 16 year old boy and all my life i have been straight, attracted to girls, only have had crushes on girls, loved this girl for 3 years, loved another girl for a whole year and loved a girl all this last year until october. But i never have had a girlfriend. Always have masterbated to lesbian porn since i was 12, i could really never get into straight porn but i sometimes did masterbate to it. Always masterbated over girls too and the girls i fell in love with, always had thoughts about having sex with girls and i would enjoy them, but i have never had sex either. Gay porn always disgusted me and i vomited at it from the first time i looked at it.gay thoughts where never in my mind and i never did like the thoughts if i thought about it. But ever since october 2011, i have been having thoughts "am i gay?" and its making me just so so depressed i can't feel like doing anything, i had started working out in august 2011 and was having fun doing that because i didn't have these thoughts and i was in love with a girl, but since these thoughts i have not felt like working out anymore :( and i want to, i still work out but its not very fun anymore. I just can't stand these thoughts anymore they have been going on for almost 4 months and i don't feel like doing anything! I still sometimes masterbate to lesbian porn but thats not fun anymore either, i look a gay porn, it doesn't turn me on but i am not that disgusted by it anymore!! still i don't like looking at it tho.... these thoughts also come back, go away, then come back again etc i've had enough of these thoughs i don't wanna be gay!! i know i am not gay NOT ONCE i have been turned on by a gay thought or a guy and i tried to get myself too but i just couldn't and it was very stressing when i was trying myself too so i stopped. but when i go out into public and see good looking guys my mind is saying "oh hes cute" by just looking at him for one second and i think "NONONONONONONONONONONONO HE ISN'T!!!" and then i kinda do or don't think he is anymore. i used to think that with girls i see girls and think "oh she is hot!" and i would feel good about that, but i can't think that anymore, but sometimes i do. I just can't take this anymore, i am not sleeping much, i am not eating much, i am always feeling uncomfortable, always scared, always have anxiety etc
i do have a psych i have been seeing him for a month now, i have only seen him a few times, but he doesn't know how to help me, he just says my horomones are going crazy, i think he is right but my horomones should be going crazy for girls just like before! i don't see my psych again until 2 weeks because he is on holidays.
also something is telling me i am better off being gay but i defently don't wanna be! i want to be straight and married to a girl and have a child, i know i want that, i know i do, but that feeling isn't too exiciting to me anymore, but i know i want that. a relationship with a man just disgusts me, kissing a man disgusts me and sex with a man disgusts me. all those thoughts with a woman make me feel a bit better, but it doesn't make me feel good like it used to

Also i hate yahoo answers!!! I hate the LGBT board on there, there answers make me feel worse, i specifically told them "I DON'T WANT TO BE GAY" and they say "ohh yep your gay" and "nothing wrong with being gay" and stupid crap like that, i know there is nothing wrong with being gay but that's not what i want to be and they would say "ohh just accept it!!" and they also think you are trolling and stuff, they are just so stupid.... it's just not the LGBT board on yahoo answers, IT'S EVERY BOARD that's got dickheads them, i hate yahoo answers i stay away from it!
Also a really really freaky kid said to me on yahoo answers when i was worried about my sexuality he says "you and me should get each other off in the shower" and that has scared me since too, i saw what he looks like too, really scary person and ugly, if i saw that person anywhere, i would run away. i have not seen a ugly creepy freak in my life like that, even tho he is a kid and he really is gay.