Yeah, I can pretty much only repeat everything that's been said already.
-Being mocked.
-Being told we don't exist.
-Viewed as being "cute" because we're "trying" to be guys.
-Being rejected by certain feminist groups because we're "betrayers of our gender."
-Being told we'll never "really" be men.
-Being viewed as a "dyke."
-Being asked such things as "Why do you want to get rid of your beautiful body?" or "But you're such a pretty girl! It'll be such a loss/waste!"
-Being given advice on how to be a man when it wasn't asked for.
-Not being taken as seriously as MtFs.
-Having our issues minimized with various excuses.
-Despite all this, being told we "have it easier."
I think that last one may be the one that hurts the most when coming from within the TG community itself. Actually, any of the above statements hurt even more when said to you within the trans community. It can seriously make you feel like everybody is rejecting you or minimizing your problems. You don't even find solace with the group of people that's supposed to get you. Yet they're going through the exact same things! It gets so maddening sometimes that you don't even want to think about it.
