Had explant 1 year ago, feeling pain recently and ultrasound showed several cysts - advice?

26 years old, got my implants removed a year ago. I've been feeling pain for a while now (mostly pectoral muscle related but also pain in upper half). Had an ultrasound recently, it showed several cysts in both breasts in the upper outer quadrants. Left one: few 5 mm cysts, right one: 10x6 mm and 4mm, and also several 10-15 mm flat cysts. I'm pretty sure they are the source of my pain. What shall I do now?Please help.I'm concerned.Doctor said it should be checked every 6 months but nothing else.