RedactedNarrative: Vessel 1 was traveling in a northeasterly direction inside a marked channel just north of Picnic Island at the mouth of the Caloosahatchee River. Vessel 1 drifted outside the marked channel while on plane at a speed of approximately 15-18 knots and collided with red channel marker 08 causing the vessel to flip over back on itself, ejecting the operator who was wearing a life jacket. She stated OP1 told her that he "blacked out" and didn't remember anything but the impact with the channel marker and his rescue from the water. According to her, OP1 takes blood pressure medication for type II diabetes and that he wears a monitor on his arm. Note: LCSO advised me of an audible alarm coming from OP1's person when they first made contact with him on the water. 
  In conclusion, it is highly likely a medical emergency caused OP1 to lose consciousness and control of his vessel's operation resulting in his vessel's collision with the channel marker. There are no boating/navigational violations found in result from my investigation. ; 
  Operator sustained a laceration to the top of his forehead requiring stitches. He also sustained a laceration to his left wrist and a contusion to his left knee. There was also a laceration to his left ear. The blood seen in the attached pictures was not coming from inside his head but from the ear.
  