Hi doctor, I am student and currently feeling that I am facing a problem with my sexual drive. I feel It had reduced to a great fall. I used to come in 20-25 mins and now i am geeting in max 5 mins. I am not married and these time are for own pleassure and intercourse both. Sexual drive has reduced in both cases. I eat a lot outside home. Please suggest do i need any drug or excersise or do i need to do anything else. I have heard that messaging with oil can help. Please clear the picture. Also i need to gain weight and it's getting hard for me to gain. I am 60kg and need to gain 15kg more as quick as possible