Clicking doesn't have to mean bad....it means your jaw clicks! If it hurts, then there's a problem. My father's jaw is so loud, that when he chews you can hear him upstairs! He has NO pain at all and no problems with it! Lots of people live with a click when they chew and never have a problem....don't psyche yourself into having a problem!
Unless you have pain along with the clicking then you may not have a problem. In my research I have learned that many people have TMJ but never have any symptoms or pain. I guess it all depends on the person. My guess is personality types has alot to do with who's TMJ gets worse to some degree. I am a very nervous person and my guess it that my nervousness adds to my TMJ problems. I grind alot and that doesn't help. Just my personal thoughts on the subject. The MRI will give you alot of answers.
When my jaw clicks it just feels uncomfortable. I hate it though. And my jaw always locks up. Every day almost. I need to get a splint made. Sometimes it will hurt and other times no. This is why TMJ is so confusing.