Thanks cpach. I'm thinking you could be on the money with the rim tape thing. Does this look a bit dodgy?
I can patch flats now, so I have something when I'm on the go, but I can't help but think there must be another way to prevent these flats. I don't think it's tyre pressure related as they're at 110 front and back, and I have brand new gator skin tyres. There's been barely any debris on the roads I've been using, but there is the odd bump. I don't know why the bike's been so sensitive. But maybe it could be the rim tape. Photo is attached.
I do have the gatorskins.