Hi,
Question...since you are using a red bulb does that mean you are leaving it on at night? If so, stop. Chams need a regular night time for their bodies to cool and sleep. 100w is definitely too much for a glass tank and a 3 month old. I only use a 60w regular for Luna in her 2x2x4 screen cage along with a 100w Mercury Vapor Bulb(MVB) for UVB
For UVB you need to supply her with something along the lines of ZooMed Reptisun 5.0 or comparable ESU brand - these are the most commonly used - or a MVB
Are you dusting her food and if so with what and how often? Are you gutloading your crix?
You said you think her moisture is good. My suggestion is to buy a thermometer/hygrometer. You really need to know temps and humidity esp. in a glass tank. Once you move her to a screen cage you'll have the opposite problem of keeping her warm - lol! well, that depends where you live. Anyway, here is a link to HD's temp gauge that I use...just an example 
lele
temp gauge
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0.1 veiled - Luna
0.2 house geckos - Gaia & Tia (both MIA 
0.2 felines - Kyndra and Líta
1.0 African Clawed Frog (for summer)
0.5 Mad. Hissers (for summer - all girls, no little ones, whew!)