Already being accused of steroids? what should i do?

Not true, I trust: I trust it's not. Use this popular quip. Your normal-sized testicles may be proof enough. Mention that you have a good attorney -- to accuse someone of lawbreaking is a tort for which you can take someone to court. Talk to people who know whoever has accused you and let them know how upset it has made you. Offer to be tested. Mention your attorney.