Sigh! Listen to the guys on here and stop listening to your doc,Both the Personal trainer and him are both quacks. My advice to you is to stop stressing ,since you already know Deca was a poor choice for a first cycle you can expect sexual dysfunction. There is no Quick fix ,but running a good PCT will help you get there faster,and Nandrolones such as deca will linger in the body for up to 18 months(another reason for a good PCT)Trust me everything will turn out fine, ,it's just going to take some time I know this because i have over 35 yrs in this field.