I am new to this site and have been suffering from headaches this time around too. I have tablets for migraines normally so they work ok but I do worry that I have been taking them for 10 days now. As for sickness, I was hospitalised after my first session because I became so dehydrated from sickness, but that was addressed for my second session, and I had no sickness at all. It seems to be matching you with the right tablets. The lovely staff member kept saying 'this is not how it will be next time'.
Keeping the fluids up is so hard when everything tastes foul but I have been told that, as long as it is decaf, I can drink milky coffee which I love. The trick seems to be one gulp of horrid followed by one gulp of lovely. I drink lots when I can and struggle other times.
The staff and oncologist here are so attentive and go out of their way to make this as easy as possible. Headaches and sickness are so debilitating. Session 3 next week.