Septum Piercing & CPAP

Hi folks!
I recently started using a CPAP machine with a full face mask that has nose cushions. Since then, my septum has been very sore, and bleeding slightly. I don't know if the mask is catching on my jewellery in my sleep or if the pressure of the cushions is too much. for the poor thing but my poor nose is unhappy.
What would you do? Has anyone gone through this before and got any tips?

Further Info:

My septum was pierced back in january/february, it hasn't been downsized but it was "cleared" for changing and ect by the piercer at the beginning of april. It currently has a titanium ring in it.

The face mask is a ResMed F40, we tried a large variety of the masks in store and this was the best one for me, the only other one was a hard shell full face mask that goes over the bridge of the nose with no nose cushions but I would like to avoid that if possible.