Breast lump from finasteride, I think

I took finasteride for a year and developed gyno from it. When i noticed the lump in my left chest i stopped taking it. However, what happened was weird. After stopping finasteride for like more than a month, the hard lump in my left chest disappeared but at the same time a hard lump appeared in my right chest. My left nipple is still swollen and big though. But on pressing it i dont feel a lump.

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