Thank you so much to everyone who sent me good thoughts yesterday. Don't want to derail the thread, but wanted to give a quick update. I just finally got home from the mammogram. It was super stressful and took 3 1/2 hours.
They did the initial mammo, had the radiologist look, called me back in for more images, had the radiologist look, called me back again for MORE freaking images (all while not telling me why or what they were looking at/for), had the radiologist look, and THEN sent me for an ultrasound after all that. After the ultrasound the radiologist came in and explained to me that she'd seen a nodule on the left side and wanted to get a lot of views of it and then look at it with ultrasound just to make sure it wasn't cancer or something serious. She said after all the tests it looks like normal tissue and she's not worried about it. I just have to go back in 6 months for a followup mammogram to check on it.
I'm so relieved, but it was literally the most stressful day ever. I have a major headache now. Off to take some Tylenol and de-stress. Thanks again, everyone.