4yo w/ lymphadenopathy, low wbc, high ast, bone pain, fatigue

I have a 4 1/2 year old son. 6 weeks ago his doctor discovered he had swollen lymph nodes scattered through the front and back of his neck. He also had a low White Blood cell count (4.1). Slightly elevated AST (58). He also had some other tests which she said showed "elevated liver enzymes". Since then we have discovered he also has swollen axillary nodes (both sides), superclavical node (right side), scattered nodes in the groin (both sides). He is very pale. He complains of bain pain in different parts of his legs and sometimes hip on a daily basis. He also sleeps alot for his age (8pm-11am +naps). He does play and run, but tires easily and wants to take a rest frequently. He tends to have very itchy skin, and has gotten red itchy patches on his stomach and chest that last for several weeks at a time. His doctor just took some more blood work yesterday, we are still waiting on some results, but the AST is back and still elevated (43). Lymph nodes seem to be getting slightly bigger, and more of them swollen. Can anyone offer some ideas on what might be going on with him? We are very concerned for our little guy, and his doctor doesn't seem to be moving very quickly on it. She just says we will wait and see, check again in a month. So we waited, now she is telling us to wait again. Any advice on what the problem could be would be greatly appreciated, thanks for your time!

[ashlee22]

UPDATE: EBV PANEL IS BACK TEST RESULTS READ AS FOLLOWS:
EBV VCAIGG      4.10     (normal range<=0.8)  
EBV VCAIGM      0.70     (normal range<=0.8)  
EBV NA IGG         8.1      (normal range<=0.8)  
EBV INTERPRETATION Reactive

[knvv]

Mm.. get a new doctor? If you're that concerned about your child, which I would be too, I would say ... definitely find someone else or MAKE her do something about it instead of just wait. Shouldn't have to wait like then when it come to a child's well being. Not at all.