It happens. Infrequently though. You come to a point in your life when you need to sedately evaluate the situation ... to move on , carry the risk and take the leap of fate OR to wait in safety, silently suffer and allow anxiety to corrode your happiness ?
If you keep standing on the verge of greatness long enough, you will eventually get the courage to leap into it. All you really need to do before taking the obvious decision to take the leap of fate is seriously evaluate your assumptions, your experiences and your options.
Either a new perspective will emerge with your serious reevaluation or it will give you the much needed boost to leap and move to the next stage of your likely destination.
Often professionals share their career pangs and anxiety. Truly, I cannot give magical answers. But situation and process is not any different.
If post evaluation still uncertain, I would take the leap of fate.