I've been through this. when my son was 3 (he is 11 now) my health visitor tried to claim I was a bad mum. she made up horrific claims about me. She would act kind to me and give me advice and then use the advice she gave me against me. And luckily I already had a social worker because I use to be in foster care due to being abused when I was 12. So I had social services in my life from age 12 till 21. But I got pregnant when I was 16 and had my son when I was 17. She told horrific lies about me and my social worker. And said she had never seen a 3 year old behave the way he did..and to be fair it still makes me angry that she said that because on the day she said that when he was 3 he was having a severe tantrum and turns out all he actually had autism which she missed! And she also lied and said my social worker was horrible to her not true. And she reported me to a different section of social services and they came round and saw that the health visitor was obviously lying. And I had a meeting with the head health visitor who apologised and the health visitor got done for gross misconduct it turns out my health visitor was trying to adopt my child and she had a plan of how to do it. You need to keep evidence of everything you do asap. Keep all reciepts, take photos of your home, of what your child has,wears etc. write down and record everything your health visitor says (but don't tell her) your doing this. keep a diary of everything you do..i know it sounds excessive but it honestly helped me fight my corner. You need evidence thay outweighs her and shows your a good mum. I also wouldn't trust the other health visitors she works with. Get your family and friends to back you. And you need to go and get help from somewhere else asap citizens advice bureau or your doctor's or even social services yourself , get in there first I think there is also mother support charities that can help you aswell. Go to as many people as you can. Unfortunately people in authority act like they are innocent. But some use their power for their own gain and abuse the trust people have in them. This happened seven years ago to me and I'm now in therapy because I find it hard to trust. If you ever need to talk I'm here for you..I'm sorry your going through this.