Someone has put in a complaint against me and a colleague. The complaint is pretty defamatory and quite personal. It involves a safe-guarding issue and is being investigated by an independent body. I know the complaint has no substance. The person who has made the complaint has done so out of maliciousness. They don't like the "power" that we hold and perceive that we are not doing our jobs properly. The reality is they don't see the job we are doing and assume things aren't being done or if they are they are certainly not to their liking. They have spread rumours around our locality and have been vocal on social media. They make no effort to engage in a positive or meaningful way.
I'm not really sure what they want to achieve by the complaint as surely they must know there is no evidence to support it. I can't discuss it with others as I don't want to jeopardise the investigation.
Despite rationally knowing this will come to nothing, it is causing me a great deal of stress. It seems to be constantly on my mind and wakes me up in the night. When I have to deal with it I have quite an extreme physical reaction with uncontrollable shaking. It will be over in two weeks but I know that it won't stop there and this individual will take every opportunity to bad-mouth me and the organisation.
How can I move on from this?