Hi. I'm 17 years old and within the last few days I have noticed I have not been ejaculating during masturbation. I masturbate regulary, usually once or twice a day. I don't know if it could be caused by certian chemicals through alcohol as I have drank more than usual over the last week (I dont usually drink if at all) or through missing my girlfriend as she has gone away for a month. Any help, suggestions or advice would be great as I am getting nervous. Thanks