Here's the problem: Frankly speaking and with utmost respectfulness.
It was a dream, learn true live with the divine essence of your presence/the present moment;
Learn true live in divine harmoniousness with it;
Fulfill your respective duties/due ties in an divinely ordained manner which means you elevate your life to the pedestal of worship;
Perhaps you may wonder where is this answer leading to, well, its seeking to actually focus on what you have already been bestowed/endowed with and seeking to cultivate the greater goodness, goodwill and gracefulness that’s you/yours please.
You may have been dreaming so much about so many things but never really focused on any of those things like the hair loss? With all due respect, it was a dream, do not cling onto it, its your divine acceptance, your pure divine nature’s awareness consciousness that will make you realize and reflect upon more greater aspects of your life instead of getting caught into the analytical examination of reminiscing upon the dreams of the connotation/significance of hair loss; all is a matter of faith in your true nature, seek true focus on the greater visions that your true nature beholds for that’s where your life will ever gratuitously blossom please.