I'm not the best person to answer your question, but could you possibly post more info???
What are your temps?? (hot & cool)
How are you measuring them?? (kind of thermo you are using)
What type of lights are you using?? (very important!!) also specify if it's a compact or strip bulb
imo.. you should have a fecal done, but i'm guessing that's going to be difficult if your little guy isn't really eating. Lack of appetite can be from parasites(especially if you got your little guy from a pet store as opposed to a breeder) Or it could be from improper temps, and lighting.
Post more info, so ppl have a better idea on how to assess your situation. For now, I would suggest daily
bathing in a pedialite/water
bath. Also it's pretty important to get calcium in your dragon, so see if you can get a liquid calcium supplement at your local pet store. Also you can go to a health foods store and get Collodial(sp?) Silver Water.. it's all natural, and it's a good antiseptic and you can't over dose your dragon with it.
Good Luck!! & Keep us posted!!!
-erik