Normal
I know your at work but when you get home if you could get some close up pics of your T and a pic of her enclosure then that might help us give a more conclusive answer as to what could be wrong,now moving slower and having trouble climbing and not eating can be a sign of pre-moult but it could also be something else,I know you said you have plenty ventilation but having good cross ventilation is key for Avics,what I do with my Avics is give them two rows of holes around the sides just above substrate level and then three or four rows around the top sides of the enclosure,also what temperature are you keeping her at?This I certainly wouldn't do lowering temp down to 15c is just asking for trouble,the last time my temp dropped that low over night I lost a few of my T's ,Tarantulas are ectotherms and lower temps reduces their body functions or stops them all together,your T already has trouble climbing and is slow moving dropping the temp isn't going to help the problem....
I know your at work but when you get home if you could get some close up pics of your T and a pic of her enclosure then that might help us give a more conclusive answer as to what could be wrong,now moving slower and having trouble climbing and not eating can be a sign of pre-moult but it could also be something else,I know you said you have plenty ventilation but having good cross ventilation is key for Avics,what I do with my Avics is give them two rows of holes around the sides just above substrate level and then three or four rows around the top sides of the enclosure,also what temperature are you keeping her at?
This I certainly wouldn't do lowering temp down to 15c is just asking for trouble,the last time my temp dropped that low over night I lost a few of my T's ,Tarantulas are ectotherms and lower temps reduces their body functions or stops them all together,your T already has trouble climbing and is slow moving dropping the temp isn't going to help the problem....