I am a breast cancer survivor. Right now the best thing you can do besides staying as positive as you can is to be PROACTIVE. Do not let facilities tell you appointments are not available, or let the insurance companies slow things. Be noisy! Dont take wait for an answer.
Beyond that, my prayers are with you. PM any time you like. I will be glad to explain anything you may need clarity on, and generally lend support. It could be a simple cyst, and that is what we will hope for.