From what I have heard, it is a well known cycle. Inattentiveness causes a patient to have productivity issues which leads to depression. The depression caused anxiety when asked to perform. The anxiety is distracting and leads to productivity issues. It is a self perpetuating spiral.
From what I understand, the only way to find the root cause is to figure out what started first and/or trying to treat one after another until you find which one the patient responds best to. In some countries, stimulants (to treat ADHD) are more controlled than antidepressants, so it is possible that your doctor first needs to make sure that an antidepressant will not help you before they can justify trying a stimulant.
Like you, I am caught up in the cycle. After years of my doctors trying treatments, we found a solution that works for me: a stimulant that makes my inattention a bit more manageable and therapy to slowly break the cycle.
























I am not sure that a math trade is the same as a secret Santa, other than the fact that you are sending something to one person and getting something from someone else.