<font color="#000088">I'm sorry you're having such a tough time right now! But I think you should tell your PDoc about it so he can help you. I'm pretty sure the only way you would be commited is if you were a danger to yourself or someone else, at the time!
Like if you were, suicidal, or homicidal, because just self-harming behavior doesn't always mean that you are suicidal!

Your PDoc might ask you if you have a plan to harm yourself, as in ending your life,type of harm. And that's a question only you can answer. But honesty is always the best policy with your Doctors, whether it be a PDoc,or a Medical Doctor if you really want them to be able to help you!
If you're not Suicidal,or Homicidal, I wouldn't worry about him commiting you! Just be honest!

I am sorry you are struggling so much right now! I wish there was more I could do for you! </font>