Does my girlfriend still care? ?

My girlfriend used to go so out of her way to look after me and show me she loved me. She took a day off work to help with an important document, always supported me etc

We have now been together for nearly 2 years and things have changed. I constantly ask about her and we talk about how her life is going and what is going on but she has no idea of the important deadlines or aspects of my life. I tried to being up a piece of work I was worried about and she just started saying how she didn’t feel very well. 

I cook her every meal, am constantly there for her, drive her everywhere and wait for her to finish working late at night so I can drive her home, when she has important work I spend hours proof reading it etc 

She doesn’t know what my important issues are. She is talking to other people but can’t talk to me for long before turning to her phone, she is constantly taking selfies and yet there are barely any photos of us on her social media. And any conversation we have (even if I’m upset or worried about something) she turns to her. What her worries are, how she’s feeling, how tough her life is etc. She just doesn’t seem interested in me anymore. 

I love her so much and she constantly tells me she loves me but our conversations seem cold, like it’s just something to get our the way until she can go back on her phone. we really do work as a couple but I’m starting to feel rather neglected. 

What can I do about this? What are opinions on this?