My veiled chameleon has been holding her hand/arm up for a while now. She still walks around the cage and uses it willingly, but while standing on her stick she'll keep it up and move it around, like she's stretching her hand. I'm not sure if this has been seen before or not, but I'm worried she's feeling pain.
Picture:

-----
Leos: Tubby, Toko (rip: Tetra)
Chams: Chamy
Tortoise: Mr. T
Emus: Zip, Zena
Pig: Pebbles
Turk: Izzy
Meows: Vash, Tiger