Mad..no sad...overwhelmed...moving on..help!

When does it stop? When I finally feel like I can breath again and focus on something other than my loss I lose it! I need help! I can't talk to my sister (new mom) I can't talk to my boyfriend (he's moved on) and I just keep talking to myself. I have this ongoing pain in my chest that just aches. It's anxiety I know, but why won't it go away. Why does a 11 week pregnancy loss do this? There's so many people who lose their loved ones and their babies so much further along I feel selfish for even hurting. Why can't I just get over it. I had my D&C; august 24th. I crave a baby even though we didn't even mean to get pregnant the first time. Help!