I lost a lot of weight throughout the whole ordeal too. I was way heavy from the prednisone. I was off it before surgery though. If you're tapering, it will likely take a bit longer. I had the butt tube and boy was it uncomfortable. I had to get some lidocaine to keepp myself comfy. My friend who also had it, said it wasn't bad for her at all, she said it was tolerable. It will be interesting to hear what you think. I did buy some new clothes. I wore looser clothes in general on top. Lots of yoga pants that I could tuck the bag into. It was temp, and I was healing from surgery so I generally dressed comfortable. Toward the end, I learned that dresses were the best for hiding the bag. I would have worn more of them if I had known sooner.
These types of shirts are great
/www.amazon.com/gp/product/B00IIMGCOU/ and high waist underwear
/www.amazon.com/gp/product/B00K0TQYX8/ and yes, remember, it's temporary, so don't spend a lot.