I have a 23 wk baby whom I am pretty sure is teething. Its quite hectic as she is now waking up in the middle of the night which she never used to weeks ago. Could she also be hungry? Today she woke up at 330am and drank hungrily. Should I start introducing her on solids? I am not so keen on baby rice. Whats the best thing to start her on and how much? Please help.