i'm new to autos but my first impression of your plant was that it's just nearing time to cut and displaying it's "fall colors", the buds look amazing and full, a bit of new growth tips still going IMO, and again, i'm new to autos but that plant looks great to me like it's doing just what it should. i would think that if the plant were truly in pain it would have an overall "crispiness" to it and wouldn't look happy at all.