I’m worried about discretion/getting in trouble at work.

If a claim is needed, it is against the your company’s workers’ compensation insurer and not your employer. If you are receiving all of your rightful benefits, I do not have to be involved until I need to be. However, please be aware that insurance companies do not always inform employees of all of their rights under the statue. Communication is important.

Also, know that you can not get in trouble at work for seeking compensation for a work place injury. You are protected under the law.