Real problems are inside your head, so it's unfair for someone to tell you they are just inside your head and not a real problem.
If you can try to seek a professional help but have it at the back of your mind that before someone can help you, you need to mentally prepared for a change. And no dear you are not selfish because the most important person to you should be you. So what ever you can do to set yourself free is not a selfish act.
Thanks for your confirming words. I never talked about it openly but usually pretended that I was happy and peaceful. I know that I need to change my approach to confront life and I'm studying to help myself out. I hope this will work. Thanks again.