im a diffuse thinner. im thinking about getting an hair transplant. i have thinned a lot at the crown, quite a bit at the front, and the hairline has receded a bit as well as the temples. would it be better to get a hair transplant after the hair all falls out? I don't want to have to do that but I'm concerned that if i get an hair transplant now, it will start to look pretty bad when the non-transplanted hair starts falliing out. do you guys recommend to wait or get it and then get another session later on? thanks!