Screaming, biting, headbutting at sleeptime

[TheHubblesWindscreenWipers]

Ds is ten months and physically very strong. He's a terrible sleeper and the (medical, actual doctor) consultant we saw this week told us to stop feeding to sleep as he's drastically underweight and needs to stop filling up on milk. Previously, feeding is the only way he's slept. We've tried everything else including cc. Nothing worked.
When I try to get him to sleep without feeding him I'm getting hours of screaming, biting, vomiting and headbutting. He's already split my lip twice, made my nose bleed and chipped a tooth (mine) so he must be hurting himself too. Of course I'm trying to restrain him gently but he's incredibly strong - I told the consultant he was doing this, she told me 'well just hold him' so I got her to try to during a tantrum. She struggled to. He is scarily strong despite being skinny.

Anyway, any tips on stopping these epic meltdowns? I'm depressed already and four hours of screaming and nosebleeds isn't helping.

He won't sleep in the pram
He won't sleep in the cot
Yes we've tried white noise
Won't take a dummy
Won't be rocked
I have no help, family or childcare nearby
I can't use a sling

The bed rails were something we looked at - it only slowed him down a bit in the baby store where they had one mocked up (I've birthed a future climber j think.) Hes quite astonishingly agile.

He hadn't been ill, as such. He was teething and went through periods of refusing to eat or drink anything g other than a bit of breast milk. Because he's so active it just dropped off him and he's never put it back. He's strong though, so surely he can't be doing too bad?

I'm in Sweden - ss are very quick to involve themselves here. The advice to not get them involved actually came from other mums I've spoken to who have had pnd - but yes maybe they are biased.
I don't really know many people here - Sweden is a tough country to get integrated in. Family all back in the uk or all over the place, so it's just me and dh (who is wonderful.) but that's a whole other issue.

He's in bed now! Dh bought him a little taggy blanket thing and he loves it. He went to sleep with only a hour of happy fussing and is -shock horror- I the cot!

I think he's just a very alert and active little boy. Everything is fascinating and too much fun and he finds it very difficult to switch off. Interestingly as well it's starting to darker in the evenings here . He was worst in our summer where even with blackout blinds and cirtains, the room was never dark.

Ha! I'm blaming Sweden. I have a RL friend who had her DD in Sweden and they lived there until she was almost two. Professional sleep-dodger.