I also have problems drinking fluids. No matter what I try I gag and almost throw up but yet I'm feel so thirsty and keeping drinking
Also 35 weeks, my pubic bone hurts too, mostly when I am standing. I don't know where you live, but I live in a cold climate and there have been lots of bugs going around. I have had some upset stomach too.
Sounds like your body is probably getting ready for labor. My friend was super flu like sick a few weeks before both her babies came.