Impaction Guinea pig liquid bloat

You can get some infant simethicone -- I believe it's called Infacol in the UK. It's usually used for gas bloating, but may help in this situation, and a little won't hurt.

You need to put your pig on some sort of vibrating pad -- even an electric toothbrush under a small pad will work.

These are stop-gap measures only -- you'll need to see an exotic vet tomorrow, or a knowledgeable emergency vet tonight if he gets worse. If he's not pooping, don't hand-feed him, but if he is pooping but has stopped eating, you need to get some food into him. See gl/handfeeding.html for instructions.