Thanks for this additional information.
People can become 'addicted' in a very loose sense to thoughts, feelings or behaviors for a few reasons: but in every case - it serves a purpose.
It seems this behavior is where you focus all of your attention in order to deal with feelings. Not just bad feelings - but good feelings as well. It's just like you said - you can't relax until you've cleared it out. But the catch - is that you see it as needing to clear out your eye - when the trigger is actually the feeling. Does that make sense? The "problem" isn't your eye - the problem is your feelings - your emotional feelings. Basically, you are taking all of your feelings and funneling them into your eye. You don't have to deal with feelings while you are focused on your eye.
This cycle can become obsessive - where you might think about it a lot or compulsive- where you can't stop yourself from doing it or feel very uncomfortable if you don't satisfy your urge to do it.
In order to stop the behavior, you have to address the underlying issue.
You said you went to a life coach - have you considered seeing a therapist? A therapist would be the professional of choice to see to fully address this issue.
Keep in mind that any behavior that repeats itself - no matter how undesireable on your part is serving a purpose (otherwise - if it were useless to you - it would go away).
Find a PhD or PsyD Psychologist with whom you really have a connection - someone you really like - and trust, who works with this thought-feeling-behavior cycle.
This is actually an easily treatable issue - in person. It's just a matter of finding out your triggers (emotions - like you stated, or whatever else triggers your desire) and replacing that with constructive emotional (or ___ ) responses.
Hope this helps!