You'd think that something so "natural" would be so much easier

Have you thought about getting an LC to see you in your home, they are fantastic and when I came home with DS the hossy staff where happy with our attachment, got home things deterioated and when I got an LC in our attachment wasnt the best, which is why i had really nasty cracked nipples.

With the cracking i found a little breastmilk squeezed on them at the end of every feed and then air dried works wonders, with DD i didnt crack. Also i dont know how true it is but my LC said that lansolin can make it worse :shrug:
With the bottle feed, it may not have been from hunger but more the drink or drown reaction, if they dont guzzle it they will choke on it as it flows so differently than from the breast.
Wrapping - might be making her too cosy and sleepy, keep her feet unwrapped if you have to wrap so you can tickle them or maybe get a safe chunky necklace for her to fiddle with (mind you they love to fiddle & twiddle)
Expressing is not a great indication of supply, but if you are stressed it will be harder to express. Drink heaps of water a it'll keep you hydrated and will help with milk production

With the screaming, definately chat with someone if you are concerned. Though it may be something simple as something you ate or drank before feeding that didnt agree.

Have you tried having a bath with your gorgeous DD and just cuddling and nursing (if she is interested)? Also if you can maybe spend a day just bonding in bed with her and letting her nurse when she wants and sleep next to you.

Good Luck and you are doing a great job.