They don't call it Deca-Dick for no reason. Deca hangs around a long time after you stop using it, its effects even longer. It affects everyone differently, you may do well to run your test longer after you stop the deca say maybe another 3 weeks then pct. With HCG, and Nolvadex. Also if it hits you this hard you may want to use HCG during your cycle.
Your lack of sex drive is due to low/No testosterone, once that returns so will the sex drive and all that comes with it. If you have some dbol tabs switch to those one 10mg tab in the am, hits you fast short acting in the system. Plus it will increase your mood, but this has to be done in the am to try and fool the body to think its natural. But youll still need some PCT. But just to get you back fast, id be looking for some dbol asap.
Hope its gets easier....... I mean Harder soon.