[Bill]

Sebastion
First, congratulations on the dive and second, thanks for collecting all the data into one place for us.
My spear fishing buddy for 20 years used to cough up specks of blood once in a while. This would occur on long diving days (5-6 hours in the water) and maximum depths of 20 meters. It wasn't possible to tell if he was hurt or just very concerned about the possibility.
Aloha
Bill