D.D.
It has been 10 years since I was pregnant with my son. Seems like I had forgotten a lot of what pregnancy symptoms actually are. I have a lot of the same you are talking about. Lots of nausea I have a hard time eating anything when I start eating it seems as though I just can't finish and a lot of what I eat really doesn't taste good. My OB gave me a paper that suggests trying vitamin B-6 for nausea. I haven't tried it yet as I just seen this yesterday. I would suggest to try it though.
As far as breast tenderness goes. I have also had the same I am almost 11 weeks and they are still so sore that I can hardly stand taking my bra off. All the support my bra gives seems to help with that.