Hi sorry for radio silence, I've literally battened down the hatches and just been on a cycle of feeding an sleeping where I can.
Peanut I really, really feel for you. My first, DS was a Velcro baby for 4 months. I don't tell you that to scare you, but to say I've been through it. Around the same time as you, I felt broken. Completely ached from head to toe and the house was a mess and I felt like I couldn't cope. This time round this little lady seems to be happy to be put down more. Do I think it's something I have done differently? Nope, I honestly believe it's luck of the draw. She did sleep on me all night last night, and wouldn't be put down, but she slept in her Moses basket downstairs with Dad from 9-12 in the evening and is having her morning nap in her Snuzpod. It's a world of difference from last - it was exhausting.
The only thing I can suggest is: do give her to your DH for at least one 'session' at night. He may be going to work, but he can hold her between feeds for an and hour or two. It gives you a break to lie down and rest your back. This time we have used a sleepyhead and I swear it has helped her settled better. Also try and pop your little one down from time to time. They may wake up, but at least give it a go for a few minutes. We have a bean bag thing we put in the microwave and warm her bed first. Also have you got a play mat/ play gym? Again some awake play time, and 1-2 minutes of tummy time help them get used to not being held, even if it's not sleep related. Some babies don't like tummy time, so build up very gradually if yours doesn't. I'm putting her down when I can, 5 minutes on a pillow here, 30 mins walk in the pram etc.
Other than that, I hate to say it, but you have to go with it. Read up on the forth trimester.. it explains why your little one is so clingy.
Make sure you have enough soft cushions to get as comfortable as you can at night. Do have a break in the night and hand baby to Hubby. Do NOT worry about the house work, unless you find it stresses you out more, then I'd say pop baby in a sling and do the minimum (dishwasher unloading and eating are my two important ones!)
Good luck. There is a phrase I used a lot with no1.. "this too is a phase and will pass". Honestly, your little one will sleep on their own soon, this time is tough but good days are ahead and it does get easier.. xxxx