Have started noticing these bands, bumps in the ceiling specially where the ceiling meets the walls or center where the two sides of the roof meet. None of the bulges/bands seem moist or mushy, we do have a few nail pops here and there. To my untrained eye seems like a bad drywall job and the house settling, but wanted to make sure if these are signs of roof leaking or any other structural issue I should be on the lookout for.
For reference this is a house that was constructed in 2018 and we live in Pacific Northwest (Seattle to be specific).
Outside of cosmetic issue, should I be worried about anything or looking in to getting it fixed?