piggie walking strangely!!

Question
We noticed this morning that our piggie,Peanut,was walking funny. Her bottom was up in the air and she seemed to keep twitching on her right side. She is eating,drinking,peeing & pooping and when she is picked up she doesnt seem in any pain and doesnt mind being touched on that side. Also all our piggies have started barbering like its the next big craze. They have only started this since we got some baby piggies. Would a bigger cage help,we wondered if they were feeling a bit cramped now and showing their annoyance with this behavior!

Answer
yeah  bigger cage would be a good idea, also with the guinea pig check her underside to make sure her rear is clean and make sure they are getting plenty of fresh veg for vit c.

also if she is making a rumbling noise when she does it then it is probably a dominence thing, in which case more space would be good. but so long as she is eating will and does not appear to be in pain she should be fine, just keep an eye on her and make sure she's okay.