Both of my kids decided by the age of 1 napping was no longer cool, and both at around the age of 2-3 decided it was once again cool. Not cool again about 6 months after that. Unless your child is sick, don’t worry. It probably is as you say a growth spurt. Kids burn incredible amounts of energy for growth and fuel at that age.
If you had problems with her sleeping in the past and are still worried; maybe you could get in touch with the paed/sleep specialist you saw previously? They may be able to help.
Hehe naps are the best 😋😍
Hope all is ok for you; and you can enjoy the mummy time naps bring!! X