I am in need of some help with my Pothos. For the first few years of his life he grew up in my office with tons of sun in a huge southern facing window, and I had no issues. He thrived. I left that job a few years ago and had to bring him home, and it's been a slow but steady struggle bus since. Every couple of months, he develops yellow leaves like in the picture. Always in the middle of a vine, while still putting out new growth at the end of the vines. I tried repotting him in a bigger pot (still maybe not big enough?), moving windows from a west facing window to a southern facing window, and finally putting him above a sink (still southern facing) so I remember to water him more frequently (a glass or two once a week or so). The pot does drain but it does have drainage catch attached (sorry, I don't actually know what that is called). Does anyone have any idea of how I can stop the yellowing?