Hello,
Just recently, when i get out of the shower, the water level in my toilet is right down & is making a 'glupping' sound. Probably air passing through the pipe down at the water level.
Then when i flush, it fills up to a high level!! Before returning down to it's "too low" level so it can start it's glup'n again

while i head off to bed
In the morning i guess it's back up at the normal level..
does it sound like I'm getting a blockage,
..or has my shower & toilet started a relationship?
