Cee-Cee
Junior Guinea Pig
Not sure if it's normal or not? 
Cee-Cee tends to have a mad half hour, in the evening, I think she popcorns.
She also runs around the cage like a nutter, over, under, around, through and hurdles anything in her way. She is encouraging her new girlfriends to join in

Do your piggies do the same?
Does this mean she is happy?
What does popcorning look like? She tends to jump up like she has just had an electric shock

She seems a lot happier since her friends arrived and being in a bigger cage (C&C 5x2)

and here was me worrying that she was still grieving and she wouldn't get on with her new girlfriends.
benjie has more of a mad day than half hour!