I own a jade plant which has been having some trouble recently. Before I start I will tell you that I water the plant once a week or sometimes even every other day if the soil is dry. The plant sits on a windows sill, it gets lot of light but quite little direct sunlight since it is hidden behind some wooden panes. Around a week ago I decided to repot it into a slightly bigger pot but that didn't seem to help, the new pot has better drainage and some rocks at the bottom.
Now onto the symptoms, The bigger leaves are getting yellow and pale and drooping downwards. The leaves don't look nice, they have spots and other marks on them. I also noticed some white powdery stuff on the leaves and stem.
Here are a bunch of photos since my explanation wasn't too great:
I am begging to think that it has a nutrient deficiency since for the 2-3 years that I have owned it I never fertilized it. But at the same time that wouldn't make sense since I just repotted it.