Gl, no offense, but I think you are getting obsessed,and creating more upset than necessary.
As many of us have said already, over and over,if this was priority over the other patients waiting to see your doc, you would not have a long wait for your appt.
It really sounds, like many have said, and if I remember right, you said the doc said this was a fibroadenoma, awhile back.
At this point can't you just believe? Many of us woman have that too,have tests, and/or removed. When I first started with this fibrocystic stuff, I was petrified of cancer, after I learned more about it what it was, I grew less scared, and now are familar with them.
Still it is good to stick with check ups, but not obsess over it, you are obsessing way too much, and I think at this point you should really talk to a therapist, and maybe chill on haunting your other doc's office.
They gave you an appt. you said? So, just go when your appt day is scheduled, period, the end.
Meanwhile seeing a therapist, may help you with your obsessive behaviour, and even possible hypochondria.
Addressing those issues can be of help to the physical you too.
As so many of us here have suggested to fill some of this time you have on your hands, which allows you to obsess with stuff, would be finding a job,if not possible do some volunteer work,which can be at animal care centers,or people related things like hospital,elderly care centers, and even with children.
Take up a hobby or sport, even both. Help mom with chores,or stuff like reading,gardening,etc.
There are so many alternatives,if you really want to lose this excessive worrying,looking for attention,you can help yourself by trying some suggestions that the members have been donating a lot of time in their caring replies to you.
Most of all you need to see a mental health professional, the sooner the better.
Again, take care now.

DE