So i had to call sick in for my mental health otherwise i wouldnt be able to do my work

So i am recently going through some things, and i work at micky d, i called in sick and they asked what are my symptoms, I remember the training said diarrhea you have to call in sick so i said that, she got all pissy and said aight, should i have just told her im taking a mental day? I felt like that would be worst