Rantidine Gynecomastia Zantac

Hi, I'm a 20 year old male.
I've noticed over the last two months a small bump on one of my breasts that can be felt and moved around like an extra tissue growth. It appears to stick out more like a breast bud but is still quite small.
I have been a very regular taker of Ranitidine (found in Zantac tablets) and it is a recognised side effect that Gynecomastia can occur in males as a result of taking this drug.

My question is, if I stop taking this drug, will my Gynecomastia condition improve? Will the lump go away in a matter of weeks (ive been off the drug for 1 week so far). Or will it just stop the condition from getting worse. Also a side effect of Zantac tablets is impotence and loss of libido, because I suffered from Gynocomastia, does this necesserily mean I will/am suffering from loss of libido and impotence?

Thanks alot to anyone who helps.