I have the same problem, did you ever see a dr and find out what you had?
first i would like to if u smoke because if u do it causes blood flow issues. It restricts blood flow from ur veins and vessels, i no this because when i stop smoking for a day or two i get back that saggy feeling in my balls,where u can hold ur sac in one hand and move ur balls around freely, u feel like u have a package again, so when i start smoking again that same feeling comes back like it wants to shrivel up like a prune
I also have a burning feeling down there that wont go away and I have no uti it just don't make sense.
No that woud not be a STD...nothing sounds STD related at all. Mybe the odor is bacterial or fungial. See a Dr.
Also my penis seems deflated and shriveled up all the time never was like that before!!!