Sick day for mental health time

I have been at my job for almost 2 years, and I have accumulated about 80 hours of sick time. At my former place of work, we had pto rather than sick time. This worked nicely for me since I like to take time to visit my children and I rarely get sick.

I have called out sick a couple of times for a “mental health day” on the past 2 years, but I think I have only been sick one time.

Is it unethical for me to take a day occasionally when I need to catch up with my rest and chores?

Author: Bubby72921