| yes it is normal and most crack will appear in the first few years of the house beening built, you notice most cracks above door ways and widows, and occassionally on ceilngs , but not as much as the other to.
as far as a fix, its drywall much, youll need to tap the crack with sheetrock tape, or use the mesh tape, which i use for things like that. apply the tap and use a 3 or 4 taping knife to apply drywall much, smooth this out, this donest have to be perfect so dont dry,
after this let it dry a day and put another coat on this time using a 6 or 8" knife, make it a little more smoother than the last coat. let this dry, and finally use a 10 or 12" knife for the final coat, this needs to really smooth so it easy to sand after it drys,
once its dry and youve sanded it, prime it with a good primer, let dry and paint |