For the past couple of nights I've dreamt about losing my hair. It's weird. I'll just "wake up" one day, feel my head, and my hair will be short again. My reaction in the dream is that of being highly ticked off and I strongly suspect someone cut it in my "sleep." I even woke myself up yelling at someone about it in the dream. "YOU CUT MY HAI... phew" I hope no one heard me. lol
Ive had similar dreams to you. When I woke up I actually thought someone had cut my hair and my first reaction was to look in the mirror to find it was still there lol.
I haven't had actual nightmares about this, but i've certainly contemplated the subject of when i'll be living with room mates at Uni. I probably won't know them at all and I have no idea how i'll be supposed to trust them.
Are you in a similar situation? Do you live with someone else who you don't trust much? Are they reltaives that are putting pressure on you to cut your hair?
If I were you, my first step would be to lock the door (if you have a separate room).
Remember that our dreams for any particular night are most often the product of memories from that day. This means that you're probably thinking about this a lot throughout the day. If so, then everytime you catch yourself thinking about this, change the subject to something else. Other than that I don't really know what to advise...
Anyway, good luck!
I trust anyone about as far as I can throw them, which isn't too incredibly far. I don't think I could fall asleep around strangers without my sword (I do that anyway) and I know they don't allow weapons on campus so yeah... I feel for you.