B.S.
I agree, you need to relax. Its only hair. And while yes, it might make you uncomfortable for a few months, it will grow back. Just look at it this way, it will probably take less effort to do in the morning every day. To ease what people say about chopping it off. Just say, yes I chopped it off much more than my liking. I'm hoping it grows back quickly.
Oh just thought of another plus, after my first daughter I cut it short (more than my liking too) vs. when I had my second daughter hair below my shoulders. Well one of the bonuses of having it short is you don't notice all the hair loss like you do when its long.