Help! My eureka lemon tree, apprx 3 years old, is flowering for the first time since I got it two years ago. BUT, the lower leaves are also yellowing and falling off. (see pics) It is in the same pot that I transferred it to when I purchased it two years ago. I am afraid that if I repot it, the new buds will drop and I really, really want to get some fruit from this tree after 2 years! I have fertilized with citrus fertilizer (about a month or two ago). I don't mist it. I try to flush water it. Maybe I'm doing too much or too little? I have no clue. I live in Mill Valley, California, and it's neither really cold nor really hot right now, so I don't think it's a temp problem. Any thoughts?? Thanks so much!!