Mam one year before i used to get hard erections when i just used to see female walking as i was a virgin , 27years, but now as i have been having sex with my girlfriend frequently since one year, i dont even have firm erections when i see her naked, but i get rock hard nocturnal erections, i feel so bad that i had such high libido and suddenly i dont know whats wrong, i feel a small lump over my left tecticle, and i ejaculate thrice a week......plz help me