FAR VIOLATION WHEN PIC TAKES HIS FLT WHEN FEELING ILL.

Narrative

10 MINS PRIOR TO HOTEL DEP TIME; I SUDDENLY FELT NAUSEATED. I THOUGHT I WAS REACTING TO SOMETHING I HAD FOR BREAKFAST. I WOULD HAVE LIKED TO GET 'OFF' THE TRIP BUT WE WERE IN A SMALL; REMOTE STATION (FOR OUR AIRLINE) AND WE HAD ONLY 1 LEG TO OUR CREW BASE. THE WX WAS PERFECT AND THE FO WAS 'SHARP.' I ALSO THOUGHT THE FEELING OF NAUSEA WOULD PASS WHEN I WENT OUTSIDE FOR A FEW MINS TO WAIT FOR THE HOTEL VAN. I KNEW IF I TOOK MYSELF OFF THE TRIP THE FLT WOULD BE CANCELED AND THE CREW AND OUR PAX WOULD BE GREATLY INCONVENIENCED. ONCE OUTSIDE; I FELT BETTER. I MET MY FO AND EXPLAINED MY SIT. I TOLD HIM I THOUGHT I COULD MAKE IT TO OUR CREW BASE. HE FELT THAT; BASED ON MY ASSESSMENT OF MY HEALTH SIT; THAT HE WAS COMFORTABLE WITH MY DECISION TO FLY. I MADE THE TRIP TO THE ARPT AND ACCOMPLISHED ALL PREFLT ACTIVITIES AND; WHILE I DIDN'T FEEL GREAT; I CERTAINLY WAS CAPABLE OF PERFORMING MY DUTIES. TAXI AND TKOF WERE NORMAL WITH THE FO FLYING. PASSING ABOUT FL180 I VOMITED. FORTUNATELY; I HAD MADE PROVISIONS FOR THAT -- JUST IN CASE. I HAD NEVER BEEN SICK LIKE THAT BEFORE IN 25 YRS OF FLYING. AFTER VOMITING I FELT BETTER BUT FOUND THAT I REALLY DID NOT FEEL AS SHARP AS I THOUGHT I WOULD. THE FLT WAS COMPLETED NORMALLY AND SAFELY -- THE FO EVEN 'GREASED' THE LNDG. FROM THIS EXPERIENCE I REALIZE THAT I'M NO SUPERMAN AND; JUST BECAUSE SOMETHING LIKE NAUSEA INFLT HAD NOT HAPPENED BEFORE; IS NO GUARANTEE THAT 'I CAN MAKE IT.' I WISHED I HAD NOT FLOWN. NEXT TIME I'M GOING TO CONCENTRATE ON WHAT COULD HAPPEN WHEN ONE OF THE PLTS ISN'T EXACTLY PERFECT AND NOT DWELL ON THE INCONVENIENCE A HARD DECISION LIKE NOT FLYING WILL CAUSE. HOPEFULLY; THERE WON'T BE A NEXT TIME!