Xoe22,

You need to discuss these thoughts with your doctor. The "Not to worry" comment is fine for now but depression is a process that can be hard to stop once started. Depression is a very common symptoms of PCS.

The doctor can help you.

You also need to have someone who you can frequently discuss your thoughts with who can help look out for your best interests.

Don't dismiss the risks of depression. Reach out for help while your mind is working well enough to reach out. Later, it will withdraw and reaching out will be problematic.

My bets to you.