"I don't want to be female, I have no desire really. But I sometimes think that if I happened to be born female I guess I wouldn't mind. Although it's very hard for me to even imagine being female."
I think you answered your own question, actually.
Quick thing before I start: Dysphoria isn't about hating your body, it's just a disconnect. I use the metaphor of I feel like a puzzle.
I'm a puzzle, and someone has taken the pieces that were originally mine, tossed them away, and just replaced them with pieces that aren't meant for my puzzle. Now the fact that these pieces aren't mine goes unnoticed by many people, but I notice. It feels very wrong, and very weird to have the pieces I have.
But what I meant by "I think you answered your own question." is you said that you don't want to be a female, and well... trans women are female and there isn't any "I want to be female" in it. They are female, but their bodies don't exactly match up, so you might hear things like "I just wish I was born female!" ...Which is really just saying "I just wish I was born with the correct body!"
The last bit, you saying it's hard for you to imagine being a female... I'm a trans man, meaning I'm female-to-male. Picturing myself as a female is something that's incredibly hard for me to do, and when I do manage it, it's upsetting. Usually the first thing someone tells a questioning person is "Picture yourself in x years as a female, and now a male." If that person is a trans women, picturing themselves as a male would be upsetting and(or) impossible, while picturing themselves as female is just...right. And vice versa for trans men.
If you are transgender, it will surface when you're ready. It took me 10 years to accept it. If right now you say you're a gay male, then you're a gay male, and if in 10 years you realize that no, you're actually a straight trans woman... That's okay. Both are scary conclusions to come to, and you'll do so in your own time. But you did say you feel like yourself as a gay male, which I think says a lot.
Before I go, just this one thing: "But I sometimes think that if I happened to be born female I guess I wouldn't mind."
The thing about this is that people who are transgender don't actually have this option. For language sake, we'll say I was born a female due to my body. Now if I had been born a male, I'd be 100% happy and I wouldn't be transgender because I feel and am a boy already, so being born with the correct body would just be very nice. And since I was born female, I already know I'm unhappy. See what I mean?
This is mostly to do with being transgender, but perhaps what I've said might give a bit of peace to your mind.
As for therapists, I'd suggest seeing one (or maybe even a psychologist). Getting a proper diagnosis sounds like it would benefit you.