Nausea. Ick! According to the NHS - both acute & chronic nausea are as debilitating, and should be regarded in the same way, as pain. There are prescription drugs to help with both being sick and also feeling like you're going to be sick - I've found they have side effects that are as tiring as the thing itself, so I don't. But it's worth working your way through those available with your GP - if you can face it.
Hopefully this won't gross you out too much - I've tried not to be graphic! If you don't want to know about my own personal nausea hell, skip the next few paragraphs and go straight to the Fixes for Nausea heading. I live by myself, so all my ideas involve having to cope without anyone else being able to run around for me.