C206 PLT DIVERTS FOR A PRECAUTIONARY LNDG DUE TO PHYSICAL DISCOMFORT.

Narrative

I FLEW VIA GPS. AFTER ABOUT 1 HR OF FLT; I FOUND MYSELF CLOSING MY EYES AND WANTING TO SLEEP. I ALSO NOTICED SOME STOMACH CRAMPING AND SLIGHT MUSCLE PAIN OR SPASMS. ALL OF THIS SEEMED TO INDICATE THE START OF CARBON MONOXIDE POISONING WHICH I HAVE HAD 4 OTHER TIMES IN MY LIFE. I ALSO KNEW OF THESE SYMPTOMS FROM AN FAA WINGS PROGRAM I ATTENDED. I THEN CHKED TO SEE IF THE 'CO' DETECTOR IN THE CABIN; MOUNTED ON MY INST PANEL; HAD A POSITIVE 'CO' INDICATION. IT DID NOT. I THEN OPENED THE PLT'S WINDOW; AND WING ROOT VENTS FOR FRESH AIR. MENTALLY PROJECTING THE FLT TO THE DEST; WITH THIS PHYSICAL DISCOMFORT I FELT THAT IT MAY BE RISKY; ESPECIALLY IF I HAD TO FLY THE GPS APCH TO MINIMUMS. IT WAS THEN I DECIDED TO MAKE THE SAFEST CHOICE; AND REQUEST PERMISSION TO LAND AT NEARBY ZZZ. BECAUSE I WAS CHANGING MY IFR FLT PLAN; AND BECAUSE I CONFESSED I WAS NOT FEELING WELL; APCH ASKED IF I WAS 'DECLARING AN EMER.' I REPLIED A FIRM 'NO' AND THEN I WAS ASKED IF I NEEDED ASSISTANCE; WHICH I ALSO REPLIED 'NO.' THEY VECTORED ME LOWER AND SET ME UP FOR ILS APCH. AFTER A SMOOTH LNDG; I TAXIED TO THE FBO WHERE THERE WERE SEVERAL CRASH VEHICLES; AN AMBULANCE AND OTHER OFFICIAL VEHICLES WAITING FOR ME TO SHUT DOWN MY ENG. BEFORE I EVEN HAD THE SEATBELT UNBUCKLED; THE DOOR OPENED AND I WAS ASKED MY NAME; HAD AN OXYGEN MASK ATTACHED TO MY MOUTH AND NOSE; AND MY FINGER WAS PUT INTO AN 'OXYGEN METER.' AFTER 3 MINS THE METER SENSOR WAS REMOVED FROM MY FINGER WITH THE ANNOUNCEMENT BY THE MEDICAL TECHNICIAN THAT IT WAS '90%;' AND THEY HAD ME SIT IN THE AMBULANCE. THEY COMPLETED PAPERWORK WITH ME WHILE I CONTINUED THE OXYGEN AND THEY FOUND I WAS QUITE COGNIZANT. I WAS RELEASED AND RENTED A CAR AT THE FBO. BEFORE GETTING ON HWY; I STOPPED TO BUY A HAMBURGER SINCE I WAS VERY HUNGRY. THIS FOOD IMMEDIATELY IMPROVED MY PHYSICAL CONDITION; AND I REALIZED THAT THIS MAY HAVE ALL BEEN CAUSED BY LOW BLOOD SUGAR AND HUNGER. I AM NOT A DIABETIC; AND IN EXCELLENT HEALTH. MY CONCLUSIONS OF THESE EVENTS: 1) IT PAYS TO BE CAUTIOUS AND PAY ATTN TO OBVIOUS WARNING SIGNS. 2) EAT A GOOD BREAKFAST; ESPECIALLY BEFORE FLT. 3) CONFESS YOUR SIT. 4) DO THE SAFEST THING AVAILABLE -- IN THIS CASE; ASK TO LAND AT THE EARLIEST OPPORTUNITY. 5) REMEMBER THAT CHANGING TO DAYLIGHT SAVINGS TIME THROWS ONE'S BODY CLOCK OFF SCHEDULE FOR AT LEAST 3 WKS.