Thanks for your advice my friend and I understand where you're coming from, I'll not use it for a couple of nights and see what happens. I really don't think it could be worse than the night I had last night, I must have had a mask leak as I woke several times with air rushing everywhere. I have tried all the other masks, nasal, nasal and mouth and hated them, I'm using a lightweight thing that just fits over your nostrils and I find it uncomfortable, my other option is to buy the pillows and give them a go but they are expensive here.
I'm not even sure I have apneas, I think I just need to solve my mouth breathing at night.