I just wanted to add that around half of the things you described above are what I consider quite common for the age. My son, nephews, nieces, friends kids etc. do a lot of these things.
I agree you should definitely have her hearing checked and I'd also set up an appointment with a speech therapist. It all sounds more like language delay issues (which commonly stem from hearing issues). She is not efficiently communicating verbally so she acts out in frustration, needs to walk you to places to convey meaning etc. it's possible she's just being an average indecisive kid when it appears she didn't want anything to eat or it could be she has given up out of frustration trying to communicate what she wants (e.g. She wants the jam ON the stock cube)