No Tansy, that's bad enough, it's the whole environment specially when you have a young lad living in those conditions with MS.
I dont know whether your happy living in those conditions for if you are not you can do something about it.
If you wish to action it {the whole scenario} you can see your GP and explain it to him/her telling them that you too are suffering the
consequences and you yourself are suffering from Depression and have had enough and require a letter for the council explaining your situation.
You then can visit your Local Council (environment and health) with your GPs letter and tell them that you and your family need another home where you can raise your child/family in an healthier environment.
Now if they give you an hard time you can refer that letter to your local MP.
They really must action this under your circumstances believe me.