Suggest Treatment For Smelly Discharge From Penis After Urination

Hi I'm a 25 year old male and have been to see the urologist twice but nothing was fround and I've been through every test I'm been going through this problem for about a year or a little longer im starting to lose count anyway here's the problem when I pee it stings the sting is much worst first thing in the morning but I've also seen blood after I've urinated and could wipe the head of my pinis and it would be a small line of blood on the item I used to wipe with I've also notice the sting gets worst after I ejaculated or have sex this has really caused some hardship in my life sexually im really seeking help and still found no answers from any where please if anyone knows what could be wrong help?