Dear Welcome to HCM We understand your concerns I went through your description. I suggest you not to worry much. You are worried about your chest muscles. I can assure you that those muscles are also like any other muscles in your body. It should become stiff and voluptous if it is used extensively. There is no chance that they cannot be made stiff with Gym workout. You should contact your trainer for proper chest exercises. There is hardly any relation between masturbation, night fall and chest muscles. Therefore don t worry in that aspect. You might need psychological counseling., I am more than happy to provide telephone psychological counseling through healthcaremagic. Contact me through customer care, www.healthcaremagic.com. Hope this answers your query. Available for further clarifications. Good luck.