Is it normal that i dont feel like a girl

I don't understand the question?

You are a girl, if you don't feel like the stereotypical girl (you see in magazines etc) it has no consequence on the fact that you are still a girl.

Many girls also don't feel 'girly', when they do jobs that are generally men orientated (ie A car mechanic wearing dirty overalls everyday) The best option here is to go out and do something womanly for you, ideally on a regular basis. Generally girls of your age like going clubbing to nightclubs etc. Or even other girls houses to talk girl talk!

"i have a womanly shaped body. i am unattrative and a bit overweight. my face isnt that girly but its not that boyish either."
That DOESN'T sound ugly.

Whatever you do, know that you are a girl.

i just think you need someone to make you feel pretty:) find a guy who makes you feel good goodluck:)

Most likely self esteem issues or body image mean that you don't see yourself as meriting the sexual identity of being a woman. Internally you probably doubt your self worth and see yourself as less worthy of being a women then the women around you. It is not that uncommon in young women.

Try to relax a bit in social environments and experiment with how you dress to find a look you feel more comfortable with. If you are unhappy with your weight reasonable diet and exercise might also help you develop a better internal image and be more happy with what you see externally.

wash off the make up and find the natural beauty in your features. There is no reason to feel you look weird because everyone has their own individual look and/style. Stay positive and take care :) you are beautiful

Do you feel like you're not feminine, or do you feel like you're not a girl?

The first is more to do with your gender expression, while the second is more to do with your gender identity.

If you don't feel feminine, you could change the way you dress and do your makeup to be more androgynous. If you feel masculine, you could go full tomboy, but I don't think that's the case based off of your post.

If you don't feel like a girl or a boy, you could always identify as non-binary. I'm not the most informed on the topic because I'm cisgender and I don't have any non-binary friends, but there's plenty of information on non-binary genders online.

A couple of links that might be worth checking out:
http://everydayfeminism.com/2014/05/separating-identity-expression/
http://everydayfeminism.com/?s=non-binary
I couldn't work out which link to pick for the second one so I just gave you the entire search so you can pick whatever headline/s sounds the most relevant.

It's also possible that I completely misunderstood you and none of this is relevant, but hey, I try.

I have these feelings often and then it brings up feelings of loneliness and being weird/out of place, Im glad to know I am not alone in this feeling.

I wish I had advice to give :(

you dont feel like a girl cuz your 18 hence making you a woman :3

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.o((")(") bunny aproves of this comment

The fact that your dramatising about this means your a girl

Sorry if this comes off as vulgar. Look down at your chest and that should be reassurance that you are a girl. Looking down a bit further should also have the same effect.