My guinea pig has suddenly become very sluggish. She’s been hiding in her room all day, I decided to leave her alone but do my work next to the cage so I could check up on her. About 40 minutes ago her breath became heavier and I could hear a clicking sound. So I took out her room and had a look at her. Her eyes are a bit crusty, she ate a little bit, she keeps facing the corner, she seems tired but she’s been sleeping all day, and every now and again she does this twitchy hiccup motion and the clicking gets more frequent and louder. Also she has lost just a little bit of weight recently.