I had the same problem a couple of years ago.
I am around the same height as the OP but about two stones heavier. I carry my weight around my middle (apple rather than pear) so the fitted swim dresses aren't great on me.
I ended up buying a regular swimdress from Bon Marche and a pair of swim shorts which I wore at the same time. I wanted to cover up my flabby inner thighs as well. I suppose it is similar to a tankini
I also bought a big shirt to go over the whole lot for when I was walking to and from
Having said all of that, I haven't worn it yet as I am too self conscious. I get the usual comments such as nobody is looking at you, you can always see someone bigger than you etc.
I agree that a fake tan would make you look slimmer and that a pattern is better than a plain colour.
Crying over sad songs on the radio
