I wonder what this means:
I am in my 6th week of a cycle and have used O2 every day multiple times a day and night. The last 2 days and through the nights all I have had is a fairly constant shadow. Maybe a 3-4 kip. No need to take O2. But it persists.
I have had clusters for over 40 years and never have I experienced this shadow thing
Has anyone experienced this?
JH.