My guinea pigs won't move around?

I would say that they have a calcium deficiency. You should give the liquid calcium orally with an eye dropper. Try to make them have at least 5 mls each and then another 5 mls an hour later. Also vit C by the way of black current syrup administered the same way, give them about 5 mls every day for a week. Sugared water to encourage them to drink also. Feed broccoli and parsley if possible along with fresh picked grass. Grain mix if they are interested in it and try to take notice of what they are leaving behind in their feed bowl.They may not be eating what they should be.

Does it look like they have diarriah because they may just be wipeing there butts. I have never had a problem like this before and have not read anything like this in my books so best you can do is go to a vet usualy the vet will do a check up for free the first time. that's what i would do.