full of beans (?.)

• alive and kicking
• animated
• antic
• bright-eyed and bushy-tailed
• capersome
• chipper
• coltish
• enjoying health
• eupeptic
• exuberant
• fine
• fit
• fit and fine
• frisky
• frolicsome
• gamesome
• gay
• healthful
• healthy
• hearty
• in condition
• in fine fettle
• in fine whack
• in good case
• in good health
• in good shape
• in health
• in high feather
• in mint condition
• in shape
• in the pink
• lively
• playful
• rollicking
• rollicksome
• rompish
• skittish
• spirited
• sportive
• sprightly
• vital
• vivacious
• zestful
• zippy