I have started my first cycle with deca and sustanon. . I m At The second week start yesterday... But i have a decrease of libido. . I have a Gf, never got problems in the bed before starting cycle. Now it s difficoult, i need concetration, feel less sensation. . And i Hardly want to have sex. . And all this is Strange because i should have more Desire then before... what it can be? Someone happened this before? It's suggesTed to stop cycle and start recovery? My mass and strength it appear to increase..