It seems to be a vicious cycle, doesn't it? Not hungry, so you give an extra bottle, so of course then she is not hungry when it's time for the next solids feed...
I really do get how frustrated and anxious you are over this. As the Mom of a "picky eater" (although, knock on wood, things are going better now) I know how it feels meal after meal. Is your lo gaining weight well? It doesn't sound as though your doctor is overly concerned about the situation, which is good. Really, some lo's are just like this. Riley was hit or miss with every meal at that age. We generally had about 3 breastfeeds in the day, and at least one night feed at that age. Maybe the nightfeeds filled him up too much, who knows? But it wasn't until maybe 14 months he started to increase his solids. He was perfectly healthy, thriving, meeting all his milestones and I wish I had been more relaxed about things back then, because when I finally gave up and just accepted that it was my job to serve him healthful food regularly, and it was his job to eat it or not, things got a whole lot better. I am sure he sensed how anxious and frustrated I was.
Now, these repeated ear infections, do they know why they keep occuring?