Una+ wrote:What laws apply? In some places there are employment laws protecting persons with diagnosed medical or mental health conditions. If you have a formal diagnosis then it can work to your advantage to disclose to your HR department or immediate supervisor.
In regards to your advice (assuming the original poster is in the U.S.).... It's bad advice if their not seeking an accommodation and it appears their not from what they wrote! There's the Americans with Disabilities Act (ADA), as well as, Family and Medical Leave Act (FMLA) and probably state laws which will have similar requirements.
1. FMLA is unpaid and has a variety of stipulations in order to qualify for it such as hours worked, number of employees etc., and would also require medical certification.
2. ADA requires a company to provide a REASONABLE accommodation, also the employee would need to provide medical documentation and how it would apply to the accommodation being requested. The employee has rights, but so does the employer.
So assuming the original poster is in the U.S. and they don't need nor are they requesting an accommodation there is no benefit in disclosing medical/mental conditions to an employer. However if they feel the need to discuss or clarify it with their employer then by all means they should do so, but I see no advantage in doing that.