So I decided to turn up at my clinic as I thought I was too tight to fly, in fact I think I was too tight in general as I was experincing acid reflux and was pb'ing a fair bit. Also whenever I fly I tend to become very gassy and am prone to swelling.
My surgeon gave me practically a full defill (4ml of the 6ml), he said he prefer it that way more to avoid any issues whilst away.
Whilst flying I didn't have any issues except for when we were landing my stomach became tight but it stopped once I walked around.