Trying not to throw up.

[Nevermore]

So currently I'm trying not to throw what I ate back up. I feel fat, and I know I can burn everything I just ate by running for 47 minutes, because I calculated it. However, that's not good enough for me right now. Right now, that food is in me, and is making me fat. It's in my body, and it needs to get out. I can't run right now. I really, really need to throw it up, I'm starting to feel like I have to. It's like that feeling you know your going to be sick. This is because I keep thinking about it. I can't stop thinking about it though. I've been trying to distract myself with other things. I need help. What can I do to make myself not feel the need to throw up?

[Fact]

So currently I'm trying not to throw what I ate back up. I feel fat, and I know I can burn everything I just ate by running for 47 minutes, because I calculated it. However, that's not good enough for me right now. Right now, that food is in me, and is making me fat. It's in my body, and it needs to get out. I can't run right now. I really, really need to throw it up, I'm starting to feel like I have to. It's like that feeling you know your going to be sick. This is because I keep thinking about it. I can't stop thinking about it though. I've been trying to distract myself with other things. I need help. What can I do to make myself not feel the need to throw up?

You can't do much to force yourself to not WANT to throw up. You'll only truly stop thinking about it if you realise that it's seriously not what you want for yourself.
If you can't stop thinking about it but genuinely don't want to throw up, try reversing your thoughts maybe? Rather than thinking of the food negatively, try thinking of it positively.
Also, you're clearly not fat. Convince yourself of that and you'll have practically won your battle on not wanting to throw up.

Sorry this was short, hope it helps you though.

[Fiction]

I know how hard this is.
Throwing up regularly can make your body very unhealthy, it can make give you heart problems and other things. Living with a heart problem is NOT fun. Take it from me.
I highly doubt there is anything wrong with your weight.

[Nevermore]

Thank you both for your help. I'll try to convince myself, however it isn't likely i'll succeed. I unfortunately tried throwing up again last night. I felt horrible because I promised my best friend I'd stop, but I just felt really fat. I felt really low. I'm trying to keep my lunch down as of right now. It's really hard. Heart problems don't sound like fun. My sister has them, and I feel so bad for her, with all the doctor visits.