I'm glad the latch looked good. How does feeding feel? It was toe curling at the beginning of each feed with DD2 for a good few weeks so don't worry if that's the case. Also, nipples recover really quickly. Have you got Lansinoh or something? You can't use too much of that.
Jelly, when DD1 was born, do you know what was the first day I didn't cry buckets? Day 16. And I'm NOT a cryer. Days 3 and 5 hit me like a ton of bricks. They honestly put me off the idea of having another one.
Also, with neither of my girls did I fall in love immediately - so I had the guilt of that to contend with. In fact, with DD1, she was three weeks old before I first felt that rush of extreme protectiveness and I wouldn't even describe that as love really.
This is really hard but it's day 8, it's such early days. What you feel like today doesn't mean you can't BF (you quite clearly can) or that you have PND or anything but at the same time, if you can't BF, that's ok too and if you do have PND, then it will be treated and you will get better.
It's such a lovely day - can you go and sit outside for a bit, feel the sun on your face? That might help you feel a tiny bit better.
I know this feels rotten and abnormal but it really is completely normal and you're doing great, really you are.