The best replacement for growth spurt is colic.

The best alternatives to growth spurt are rated as following:
★★★★★  colic
★★★★★  teething
★★★★  low milk supply
★★  sleep regression
★★  comfort feeding
★  wonder week
  comfort nursing
  low supply
  cluster feeding

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Speaking about growth spurt, one probably shouldn't forget about puberty.

Other search terms related to growth spurt and their ratings are:
★★★★★ puberty
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Google Trends

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growth spurt
colic
teething