Erectile Dysfunction & Premature Ejaculation?

Hi, I'm 27 years old male from Bangladesh.My problem is i too fast and my pennis dont get hard enough to .I'm masturbating regularly 3-4 times daily for last 8 years.I discovered the problem when me & my girl went to have last week,i found that my pennis is not getting enough hard to my girls i felt shame.I'm also feeling pain on my left testicle for last couple of months,this pain started one night after i .Now i'm worried,feeling shame to go to a specialist.Please help me by giving your opinions & suggestions.Thank's.