Hi Mamen, welcome to our community. I don't know how common cycts are in younger women. I certainly remember (way back) when I was menstruating and how painful my breasts would get. I don't think they every disturbed my sleep however. If I were you I would consult with an ob/gyn or a doctor who specializes in breast health. I certainly would not wait too long to get another opinion about these "cysts". By the way, 5,6 and 7 mm are pretty small. Still you need better answers than you've gotten so far, IMHO. And, yes, caffeine can aggrivate breast tissue. Good luck and keep us posted. Hugs, Lauri
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