How many times a week do you dance?
Do you do any weight training with heavy weights?
I have a few friends that were all dancers and super skinny, because it’s like doing 8 hours of cardio a day. Once they stopped dancing, some of them became pretty big, because they continued eating the same amount of food, but they weren’t dancing to burn it off.
Although my situation is a little different to yours, I used to have a manual labour job, play football (soccer) for 2 different teams & I had a bodybuilding style of training that didn’t have a lot of recovery. I couldn’t get bigger because I my metabolism was so quick, it was like I was in a constant deficit.
Now that I work in an office and I don’t play football anymore, I’ve bulked from around 170lbs to around 250lbs (some of it fat), as I’m able to find more time to eat.