My fiddle leaf fig has been doing great until recently. A few weeks ago the bottom leaf turned yellow, then eventually died and fell off. Now the next bottom leaf is doing the same thing. Is there something wrong with the plant? I don’t see any signs of pests, and I don’t believe I am overwatering (I’ve had the plant for over two years since it was only a few inches tall and never overwatered). Is this a natural process of the plant? Possibly because it’s winter and not getting as much sun? Plant has been in same exact location for two years.