I have 3 baby girl rats who are about 6 weeks old! Wev had them for 3 weeks and they are soo playful and so much fun! Yesterday i went to take them out as i usually do and in the same place that i usually do, but they wouldn't come out and usually theyr hanging off the door waiting to come out! When i tried again later that day, 2 of the girls came out, but one still refused! Iv tried again with them this morning and the 2 are out playing happily as usual, but the one girl is really skittish and is sneaking around sniffing the air! She's not playing or interacting and keeps running behind the cage! Im worried because shes usually the most playful! I hope shes okay! Any help would be much appreciated! Thankyou x