Does depression leave some scar kind of effects after having been treated?

Sounds like you really trying to help yourself and that's good. Exercise is good and is know to help improve your mood. Hang in there :)

Depression and the other, recent symptoms you mention can all originate from trapped celullar memories. The reason a situation really "gets to us", even if it's just portrayed on a TV show, is because we have had a previous experience that caused the same feeling we weren't able to appropriately deal with. So, that emotion gets trapped and then when we experience something that makes us feel the same way later, it "hooks" into that previous trapped emotion and kind of puts us right back in that same state of mind/body.
Energy psychology techniques such as The Emotion Code, The Healing Code, and Emotional Freedom Techniques (EFT) can all be wonderful tools to easily remove those old trapped emotions. You can read more about these techniques here: http://www.holistichealthdiy.com/emotional.html
They have really changed my life for the better, more than I can ever describe. I love sharing my experience and helping others learn to use these tools.

thank you very much for your time
but I don't have these symptoms
I am happy and I don't feel fatigue much, I say much because I have anemia that's why I may have fatigue sometimes and actually my depression started before because of this illness actually
that is I don't feel like I am in depression but I have a tremendous difficulty in remembering something, especially a name of somebody I know a few years ago or from where I know him or her or a word in my second language English
That's why I am confused because I feel very happy
and I really thank you for your time and effort

Hi Anon,

Welcome to EmpowHER.  If you have experienced depression before, they could be a chance you might be experiencing it again.  Here are some of the signs to look for.  If you feel any of these for over two weeks, it might be important to see your doctor and explain your symptoms.

• a persistent sad, anxious or “empty” mood
• sleeping too little or too much
• reduced appetite and weight loss, or increased appetite and weight gain
• loss of interest or lack of pleasure in activities once enjoyed, including sex
• restlessness or irritability
• persistent physical symptoms that don't respond to treatment (such as headaches, chronic pain, or constipation and other digestive disorders)
• difficulty concentrating, remembering or making decisions
• fatigue or loss of energy
• feeling guilty, hopeless or worthless
• thoughts of death or suicide

Here are some resources for you

https://www.empowher.com/condition/depression
https://www.empowher.com/condition/depression/community

Best,

Daisy