hi ! i am a male , aged 37 yrs .i am working in saudiarabia , since few years i have lower back problem . last year docotr dignosed that i have lumbar spondilysis. i had a great sexual life , but since last year after i was dignosed of lumbar problem i am facing erectile dysfunction . i visit india once in year . i had a smoking habit too!.i kindly request u to guide me accordingly.some says that becos of back pain i am facing this sexual problem .