Frequent-Urination & erectileDysfunction

Hi, I am 24 years old living in chennai. Iwas suffering from frequent urination for a long period of time. After peeing, getting a sense of  incomplete emptying of urine. So I strain to empty it ending up getting tired. Also I am facing difficulty getting erected, feel like peeing whenever I get an erection which results in sooner ejaculation. Recently I got discomfort and pain in lower abdomen and on testing diagnosed with kidney stone. I thought frequent urination might be due to the kidney stone. I undergone ayurvedic treatment at home. Now I don't have abdomen pain but still frequent urination and sense of peeing while erection was there. Is the frequent urination is due to kidney stone or kidney stone is due to the frequent urination or some other problem. Could you please some one help me on this and get me out of this hell of my life time. Thanks in advance