A healthy obsession

The more that I am getting into health and fitness, I am coming across people that look at it negatively.  They are concerned that myself and others like me are becoming "obsessed".  Well, ya know what?  Maybe I am, but it's a healthy obsession. A healthy addiction. God gave me my body, my life and my family.  I want to be the best me.  For myself, for my family and for Him.  It has taken a while to accept it but we deserve to be happy and healthy.  I used to feel bad thinking of all the less fortunate people in the world, sick and hungry.  Along with my existing depression, I felt bad for taking a care of myself, almost as if I was being selfish.  I am realizing that in order to help others I have to help myself, I have to be obsessed with myself.  It can't be a sometimes thing, it has to be an every day, all the time thing. 
I am not talking about being obsessed with my outward appearance or reputation.  Being obsessed with myself or being healthy is a good thing.  It causes me to eat healthy and exercise everyday.  On the days that I take care of me, I stand up straighter, I smile, I am more productive, more organized, it spills over to others around me and I like that. How is that a bad thing?  The word obsessed, as defined by Google is to "preoccupy or fill the mind of (someone) continually, intrusively, and to a troubling extent."  It doesn't have to be a bad thing, that is why I call it my healthy obsession.  According to the Urban dictionary and the definition I prefer for obsessed " Is just a word the lazy use to describe the dedicated." In my opinion, we need to be obsessed, dedicated to ourselves.  We need to be the best we can be.