Need to move to smaller property because of health

hi everyone,

This may be a long post so my apologies for that in advance!
I have several chronic conditions and invisible illnesses, and I would like to move into a 2 bed on my own, as I’m not managing to keep on top of the housework etc in the current 3 bed house we live in! I suffer with curvature of the spine with scoliosis, under active thyroid, carpal tunnel in both hands, ibs, raynauds syndrome in hands and feet, Achilles tendonitis, degenerating bone disease, tennis elbow, golf elbow, depression and anxiety, sciatica/lumbago, so I need to be able to live somewhere where I can manage more easily. Plus my husband is showing a lot of traits of narcissist tendencies and is being emotional abusive towards me, which is causing my mental health to be ongoing for years. He tries to make out he does 80-90% of the housework, which is a lie, as he makes an evening meal either in the slow cooker or cooks from scratch when he gets back from work which is normally around 1pm, and he washes those pots, but yet he complains if I leave the breakfast pots on the drainer without drying them and putting them away, yet he leaves the tea pots overnight on the draining board for me to put away in the morning, he cleans the bath when he feels like it and sometimes does the whole bathroom if it’s really bad and I haven’t been able to manage to do the sink, toilet, and skirting/shelves etc because of pain. I get no emotional support, even tho he knows I’m suffering with numerous debilitating conditions and symptoms, yet he thinks the more I do, the better I’d feel, oh if only it worked like that with severe under active thyroid, as I am fatigued all the time, have pain, and brain fog, so it’s difficult for me to start a task and then finish it! He just doesn’t get the fact that the more I do, the worse my symptoms are, yet I’ve even ended up in hospital before because I’d done far too much, and my body had hit a wall! He’s even, unbeknownst to me till he came home and told me, that he’d rang the housing association up, asking if we could have a walk in shower put in due to my mobility issues, as I find it difficult getting in and out of the bath even with grab rails, due to the fact I can’t lift my leg high enough to get into the bath, with standing on a bath step too! After he’d said I had mobility issues, they said that they couldn’t put a walk in shower in for us, due to costing and it being too big a job, but they said I could apply for a wet room to be installed instead. So he said no we don’t need a wet room, and they said but I thought you said you’re wife has mobility issues, and thus ended the call after that! So I was fuming when I found out as that would be the perfect thing for me, but no my needs neither matter, nor are ever met!!! He’s chosen to sleep downstairs for years now on the sofa, apparently due to my snoring, ( it’s never been an issue before), so he doesn’t sleep in the marital bed, nor has he been intimate in any way shape or form for years either, not even a cuddle or holding hands, and when he gives me a kiss goodbye, it’s always a peck on the cheek if that, never a kiss on the lips. He’s made us go through a bankruptcy twice, has taken money out of my purse without asking, and he’s only last year paid off an IVA in October, but the 1st thing he did after doing that was get a credit card, knowing full well I didn’t want another credit card in our house ever again, and even had the cheek to ask me knowing my view, but still going ahead and doing it (financial abuse!). He doesn’t respect me or my boundaries, and has extremely bad double standards. He has a self inflated ego and thinks he’s bigger and better than anyone else, and uses that to intimidate me! If you pull him up on something he’s done wrong, he goes off it and goes off in a huff like a big kid! He withholds information from me, yet has to know every minute detail of my life! He’s even had a community order from the police regarding a neighbour, yet I’m always ok with her but feel guilty cos of my husband, as he’s always antaginising her, he’s not a people person and doesn’t like socialising at all, he’s got no friends and we don’t go out, and I’ve even had to miss out on family dos, cos he doesn’t want to go . Never had a holiday in years, asks me if it’s worth me having my car, which I bought with my pension pot when I got ill health retired from work on a Tier 1 which means I don’t have to get any gainful employment right up till my pension age, yet doesn’t understand it’s my freedom, and I’m not going back to being stuck in the house 24/7 looking at 4 walls! The pension pot I got was wasted on stuff he wanted (not needed) to get, just to look flash!!! ( which was £25,000!!!). I just feel like he’s forever draining the life out of me, and I’m living on the edge of my nerves all the time!!
Would I be entitled to move into smaller accommodation (2 bed house or bungalow with wet room), if I had a needs assessment done, or would I be better off speaking to my GP and/or council and explaining my needs. Any advice please?