I was working out this morning and felt the lump behind my left nipple that has been hurting like hell for the last several weeks. I just thought my nipples were sensitive but it turns out I have gyno

I have letro on hand BUT it kills my sex drive. That won't work because I am hosting a swingers party at my house this weekend and a limp noodle would be disasterous.

So would you wait a week to start letro OR try taking tamoxifen this week and start letro next week OR just call off my party and tell all these hot couples I had a last minute emergency?