I recently bought this yucca cane and I love it, but I'm terrified something is wrong with it. I noticed some brown curling leaves, some of them new since I bought it, and some of the bright green leaves now look pale and yellowish. A leaf or two has gray spots on. I haven't watered it too much, I don't think. I use a soil meter. It's in a corner but gets indirect sunlight and there is a lamp by it that is nearly always on. The trunk is not mushy.