Discount stores, too, like Walmart & such, are great for these transitional times. You can get a lot of clothes for little money. They aren't fancy or particularly well made clothes sometimes, but you won't need them for long.

If you can afford it, take a bit of money and buy just enough transitional clothes to get you through. You'll be amazed at how much better you look in clothes that fit, and you won't feel badly when you grow too skinny to wear them.