Am going to a ball in a few weeks and need a dress - apart from not really being sure what you wear for a ball (having never been to one
) all I can seem to find are strapless/sleeveless dresses and I need sleeves! I do weights a lot at the gym and may be considered a little butch toned by some so best covered up for occasions when you need to look feminine and delicate 
Can anyone find me a dress with sleeves that would be appropriate for a ball?? I am 5ft 8, size 14, fairly hourglass but have slight tummy which I would want to 'disguise', want knee-length (ish), budget is upto £50-£60 but would go a little bit higher for the right dress 