Thank you for your reply,

The appointment went well. The consultant had a good feel and felt her tummy also and asked about her general health which is fine. He said that lymph nodes and stay raised for up to a year sometimes more and also that because she is tall and lean that they are easier to notice. He said he wanted to 'cross the T's and dot the i's' so sent her for a chest X-ray whilst we were there, afterwards we went back to children's outpatients where he told us that it all looked normal to him and that we would get a full report within a few days in the post and she could be discharged. So a big relief! He did say to keep an eye and the lymph nodes and if they change or she starts with other symptoms (night sweats/poor appetite/weight loss/strange bruising or bleeding) then to get in touch again. Also her full blood count was normal also so that's good. 
I hope this thread helps someone going through similar .