<human>: Can you condense the text into three sentences or less?

Hi all! Did a search on whining and haven't found anything not already considered and or attempted. 

We adopted our girl Lexi when she was 9 months old, and at the time she was a remarkably quiet dog. She rarely barked, never cried through crate training, didn't cry when left alone, didn't cry when we shut the door with her on the other side. She still doesn't really whine for those reason. I can't figure out why she is whining. Most of the time (aside from wanting to play and throwing a toy in your face) she doesn't seem to be trying to communicate anything in particular. 
She learned whining from a dog friend around the age of 1, and it was quite intermittent for the first 9 months she started doing it. She doesn't appear to be in pain. She has water. She has food (which she is likely actively ignoring), she has access to toys and rawhides and or raw bones. She gets regular daily exercise and training. She will refuse affection or to go outside, whether for a walk or to "go potty" (we have the bells for over a year now and she still is scared of them so I think I might put them in a bowl and slather them with something gooey and disgusting she won't be able to resist). Ignore her and she will whine for upwards of 45 minutes. Ask her what she needs and she'll lead you in circles. I do most of my work from home, and this is really starting to burn me out. I need some ideas. So far I have been entirely unsuccessful in getting her to bark, whine, yawn, growl, or lick "on command" or mimic although she is right on track with most all her other training.
<bot>: Dog learned whining late. Hasn't learned to use it to effectively communicate needs or wants yet. Frequency and duration is increasing.