When I was pregnant with both kids I had horrible nausea AND vomiting several times a day for the first three months. With first pg things never really felt better, though the puking stopped, and with my last pg I felt ok after the first three months. I was in better shape for that pg (had been running and finished a half marathon, was training for a full when we conceived).
My husband reminds me monthly about the day I was wretching over the toilet, looked up and him with a grim face and said "no matter what I say from now on, NEVER LET ME DO THIS AGAIN." I would start puking and not be able to stop for 5-10 minutes straight and really messed up my throat. :-p
But of course I have total amnesia and am dying for a third squish. :-)
He thinks I'm insane . Lol.