Yes I agree with winter, it would be better to have more details before advising... incase you're unwilling to share though, here's what I think so far;
Physical flaws (stretchmarks, scars, etc) can never be a deal breaker. Very few people would then be in any type of relationship. Deal breakers are deeper than physical traits and are present because there is no way for parties to compromise. i.e. Abuse, monogomy, marriage VS no marriage, kids VS no kids, etc... Those are typical deal-breakers.

Would I be upfront about not being emotionally available and uncomfortable with sex? Depends on "how" upfront is actually upfront...

Cultures differ, here we generally get to know someone socially before going on an actual date, its not common practice for 2 complete strangers to go out to dinner, which works well for many reasons because you get to know the person some before making up your mind about anything and encourages friendship to blossom before love...

Anyway my point is, if it were me, then the guy would already know by the first date that I'm not a touchy feely emotional type, or whatever, and it would be an easy subject to bring up. If I didn't know him from Adam? I'd wait till I got to know him a bit better. And I would only mention the intimacy thing if I thought the relationship was definitly heading in that direction.

My unsolicited advice to you however is this: You don't seem ready for a relationship. You admittedly do not know how to set boundaries and communicate your needs.

Say if a man were trying to get intimate with you, and he was really into it, and didnt notice your expression or demeanor change... he's not a mind reader is he? and you said you can't say no. What if you 2 have sex? is he then guilty of rape because he wasn't able to read your "no" reaction accurately? I foresee huge complications and possible danger in the light of the information that you are unable to communicate needs and wish others to read your reactions and behave accordingly.

I suggest you seek some therapy to help you with your communication problems, and maybe even with your intimacy issue if that suites you. Because once you have firm guidance in these areas, dating will be less complicated for you and the person you choose to date.

Bless your heart, I think love is for everyone, and I don't think you're creepy at all. I do hope this response is received in the helpful spirit it was sent

A friend on PC plays this song to me now and then in chat to remind me that we are all beautiful including me. It has helped me along with his unconditional support to beleive in myself more.

The people who are most likely to get to know you and to first like you for who you are - then love you - are the ones most likely to be conscious of having baggage of their own. "...like they always do." tells me that you expect to be treated this way and people pick up on this. Anyway, it is entirely possible that there are already people in your life who would just be grateful for a chance to get naked with you and they just don't realize that maybe you would be willing to overlook their problems. Not all baggage is visible, even in the nude. The thing is, if you are pushing them away and they are pushing you away then the hookup is not likely to occur. So. If you consistently find yourself attracted to people who treat you the same way, then maybe you should consider other people - the ones you aren't really drawn to. There may be potential there.

As for love, I agree that it has a tendency to overlook and minimize flaws. At the same time, though, someone who really loves you should want to help you become the best person you can be. This means helping you to change the things you can change. For the most part, I think that scars and stretch marks just need a few years to fade. The acne may be fixable, starting with things like tea tree oil, antibiotics, drinking more water, and avoiding highly processed foods. Stress probably plays a role as well; any condition it doesn't actually cause is often made worse by stress. Someone who loves you will want to help you to feel better about yourself. When they look at you, you want them to really look and really see you. If they have to look past something, it means they aren't completely accepting you for who you are. Being ignored - even your flaws - hurts, especially from someone you love.