Hi, before I start, I want to apologise in advanced for the potential crudeness of this question.
I'm a 24 years old male, healthy with no major medical conditions. Recently in the pass 2 months, I have gained a lot of weight due to busy schedule, lack of exercise and improper diet. I think I have gained about 18 pounds or about 7 KG.
I recently noticed that I have been losing my libido, unable to have intercourse with my girlfriend. It's not that I cannot get an erection, I just cannot maintain it while having intercourse with her. Halfway through, I find myself panting as though I have been running and sweating a lot. This causes me to loose the mood and not able to finish.
I have no problems when I watch porn or masturbate by myself, not that I do those 2 often.
I also do not have any prior medical conditions that might cause this, is this because of my weight gain and my drop in physical fitness that caused this?