I have noticed slower and less behavior after meals also. I think its normal.
The exciting part is, I have a corn named Sage too! She is a 2002 normal...whats yours?
I attached a pic...lets see a pic of your Sage!

-----
Coal's Cold-Blooded Creations
Cook Minnesota
BOAS:
Gavin, Lydia, Hailee, and Jade ~ Dumeril's
Wyatt, Sheena, Shaylee, and Mary Jane ~ Columbian
Desdemona ~ Peruvian
Madeline ~ Surinam
Avery ~ Bolivian
CORNS:
Kiana, Sydnee, and Sierra ~ Amel
Casper and Kissa ~ Anery
Tripp and Scarlet ~ Bloodred
Bo, Katrina and Aidan ~ Ghost
Skylar ~ Anery Hurricane
Ariel ~ Striped Amel
Lily ~ Blizzard
Ambur ~ Creamsicle
Neva ~ Snow
Sage ~ Normal
BEARDED DRAGONS:
Divine ~ Silver Pastel
Christopher ~ Sandfire Red x Sandfire Yellow
Baby ~ Snow
Marilyn ~ Sandfire Red
Jane ~ Normal
CAT:
Morgan ~ Calico Tabby
DOGS:
Maximillion Vasco von Katzel and Len-Mar-'s Lexed Leas ~ AKC German Shepherds
HORSES:
Mateo ~ Palomino Paint Quarter Gelding
Chic ~ 3/4 Quarter 1/4 Arabian Bay Mare
Rayna ~ 7/8 Quarter 1/8 Arabian Palomino Filly
Dallas ~ Palomino Quarter Gelding
Banner ~ Red Dun Quarter Mare
Chance ~ Buckskin Dun Quarter Stud Colt