I have read some of the responses here. I don't know you or your child well enough to know exactly what is going on in your house, but it sounds like your little one misses you as much or more than you miss her. It sounds like you had to go back to work, which is the case for a lot of parents, but babies react differently to the change. Have you tried connecting with her when you are at home? Skin to skin on your chest. I was recently at a conference where Christina Smilllie was tlaking about this skin to skin contact. It might help her and it might also help you.
I think I saw a post like this not too long ago. It might have been you when you were first starting this transition. Dr. Sears, among others suggest that real meals of solids not be introduced until 12 mos. They are ready for tasting solids from 7 mos to 12 mos. At 7 mos their bodies are just getting the enzymes to digest solid foods. Babies can get horrible allergies if given the wrong foods too soon or too often.
If I were in your boots, I would reinitiate breastfeeding when I was home and available. I would skip the bottle entirely and try to work with her drinking out of a sippy or cup or even a water bottle filled with milk. I would spill a lot of milk, but I would do what I could to get her to drink. Breastmilk and/or formula is where a baby at this age should be getting all of it's nutrients.
One other thing, the growth chart has been updated to reflect more nationalities and a new generation of people. Here is a link to the CDC-
http://www.cdc.gov/growthcharts/
Every child is diferent, but I also believe that mama's know their babies. If you think she needs help do what you need to to get her help.
HTH,
M.