I am 35 years old male, married & having one child. For the last two years, I have a problem of ED. Eventhough erection is taking place, rigidity is not strong as earlier. Most of the times erection occurs, but its not stronger. I have problems of premature ejaculation, but its managable. I have no other health problems. Can u guide me what is cause of this? Further if i want to medical consultation, what all check should i do?