any body know a lot about animals (guinea pigs)

Hi I know this is a bit random but I have 5 guinea pigs and they all have very different personallitys, this morning whilst feeding them my two very chilled pigs escaped and just wanted cuddles from me and just licking my hand (usually they hate people and feeding time dose not bother them) my other three who love food time (try are very quiet and in the zone when it comes to food) just sat staring at me squeaking away!!! I tried giving them their favourite veggies and that didn't shut them up....... what the he'll is going on with them? I love my piggys and it's horrible because I don't know what's wrong atm