Fuel tank "gurgling"

Ummm, probably going to make myself sound like a proper idiot now but i filled up with diesel yesterday and wen I drove home I had the radio off - which is unusual for me (had a headache lol) when I parked on my drive (its on a slight dip with a speed bump just before the start of the drive) I noticed I could hear the fuel tank "gurgling" kinda slopping around inside I guess - I realise the fuel will always do this but I have never heard that on my previous cars and I have had a lot!

Now I realise Im being paranoid but is it an issue I can hear it - surely there should be enough insulation and seperation that I shouldnt hear the fuel tank sloshing about?

nah i could hear it on my golf mk5 1.4 ....

Ok, cheers - guess I keep my radio turned on in future :o