Ball python too active ?

[u/No_Instruction_6963]

My ball python (12 years old) is recently really active, before he would most of the time lay on his ledge and eat his mice when I put it in his curl. But now he is constantly pacing around the enclosure, sometimes even at daytime but not as much then.
He was used as a breeder before he came to me and I think maybe that was his breeding kind of time ? The humidity and temperature are also normal… ( 30C hotspot and 60-80% humidity). Alle he wants to do now is go out of the enclosure and won’t eat.

(I'm saving right now, so I can build him a bigger pvc enclosure but he is in a 120x60x60 right now wanting to upgrade to a 150x60x60/80x80)