Food or drinks to help with nausea/vomiting. Poor appetite in the first trimester.

I am currently 8 weeks. Almost everyday I have a combination of headache, nausea and vomiting. Some days it really gets to me and I feel defeated. I am trying to do a list of food/drinks that can help me combat nausea or ideas of meals I can eat, my appetite is really poor. I also have this bitter taste in my tongue which makes drinking plain water/eating a task. Would appreciate any advice and tips on what works for you. May I also check if I can take panadol with my morning sickness pill (metoclopramide/diclectin) on days I have both a headache and nausea?