I went to my old psychologist for the first time after a long break. I'm currently feeling very unstable due to extreme hormonal changes (I think this is the reason at least, I'm recovering from anorexia and just got my period after years without it). My mood is up and down in extreme ways: I've panic attacks, I get exaggeratedly happy and I am deeply depressed, all in the curse of a week.

Anyway, I sat there and we were talking about something upsetting my mom said and she asked me if my mom had been a mom or more like I had been her friend. I felt I didn't want to go into that, I was feeling irritated, so I said "look, she was fine with me, I survived didn't I?" and then, 5 seconds after, I started to laugh (don't know why!!!!, it wasn't funny) and I couldn't stop. I had a laughter attack and laughed louder and louder and finally I laughed for real at my own laughter. She was looking at me looking very serious/worried. We tried to restart the talking but I couldn't talk! 15 minutes of this madness and the session was over so I had to leave. I left the office laughing.

I'm scared, nothing like this has EVER happened to me
Thoughts?? similar experiences?? I'm scared about what she will think