Infant scoliosis possibly?

i just got the results for my 2 1/2 month old's xrays, and turns out she has a 5 degree curve. they're not saying its scoliosis yet since supposedly that requires a 10 degree curve, but shes always turned to the left which is making her back curve more and more. were gonna start her on pysical therapy this coming week while our appointment with the pediatric spinal specialist approaches, have any of you had a baby with any curve or scoliosis? if so, what was the outcome? when and how did u start noticing? is therapy going to be painul for her? what are the long term side effects of this? if it was years ago, is it completely gone or is it still noticeable? i have been doing research from the minute i got the results, but i wanna hear personal experiences please. thank you.