Hi I am a complete newbie here. Okay so this actually happened two nights ago. My sons guinea pig jumped when he tried to pick him up and he fell down the back of the sofa. Picked him up and he didn’t have any obvious injury. He has been keeping an eye on him since and his behaviour or movement haven’t changed so nothing obvious. I’m just really looking for advice on what I should be aware of. We are new to the world of guinea pigs with my son getting Grover and Felix a couple of weeks ago, it was Grover who jumped. Any advice welcomed. Thanks in advance.