Last night I had what I think was a lucid dream but I couldn't things that I can normally do in a LD...in the dream I was talking to my mom and when she started talking about her trip to the moon I kinda realized I was in a dream and I did the nose RC. After realizing that I could breath with my nose closed and tried to fly but I couldn't. I normally feel really light in my LD so flying comes really easily to me, I sometimes even float away without wanting to, but this time I was feeling pretty heavy. I tried again and I couldn't. Then I tried to change the setting by spinning but nothing happened. I remember I tried to fly again but nothing happened and I can't remember what I did after that.

Was that a lucid dream? If so...why couldn't I do stuff I can normally do?