Most of the times mental health is not just a simple line  , its a specrum. You can have multiple  issues and some of them even contradict with eachoter, some of them are just mild behavoirs of other mentall issues, some of them are there all the time, some of them come and go, and because of that is really really hard to understand what exacly is wrong with you. I have anxiety, i had depression for 6 months in the past but sometimes it comes back, i have ADHD that contradicts a bit with the anxiety , i have mild OCD behavoir as a result after the chaos of my ADHD , i had an eating disorder , got rid of it but the thoughts of it still haunts me sometimes , i have huge self image issues but not so bad it can be body dysmorphia.  I feel like when it comes with disorders is eighter black or white. But what do you do when you are in the gray sprectrum? They still bothers you but not so bad that you can get a full diagnostics and treatment.