I see so many responses on here telling family members to call Social Services to ask for an assessment for their parents as they are struggling with their caring role. You should not do this if they have capacity and don't want Social Services involvement.
One of the first things you should be asked is do they know you are contacting them? Even if they do call your parents ( they may call to offer an assessment) it is extremely likely your parents will refuse.
You really need their agreement first.
If you are struggling as a carer it would be worth contacting Social Services to ask for a Carers Assessment for yourself. This means you can talk about your carers role without consent of the person you are caring for.
If there are safeguarding concerns then of course report them but state that it is Safeguarding to get (hopefully) the correct response.
I'm writing this out of kindness and to hopefully avoid some frustration. Caring is hard so it's important that you are not waiting for support only to be disappointed in the actions (not!) taken.