I've had my pothos trailing across a shelf for about eight months now, and I'm finally seeing the kind of growth everyone talks about

I've had my pothos trailing across a shelf for about eight months now, and I'm finally seeing the kind of growth everyone talks about. I think the turning point was moving it slightly closer to my east-facing window—not full sun, just brighter indirect light. I'm curious though, does anyone else struggle with the leaves yellowing lower down? Mine still does that occasionally and I can't quite figure out if it's just normal shedding or if I'm watering wrong. Any thoughts would help.