Sorry for late reply and inconvenience.
Well as you describe your symptoms can be associated with Irritant Urethritis due to repetitive friction from cloth.
You should wear loose cotton briefs.
Also your blood sugar level,thyroid function test,CBC and urinalysis should be done.
You should hydrate yourself with plenty of fluids.
Avoid rough masturbation and sex.
Use a lubrication.
You can try OTC Motrin and Claritin for symptomatic relief.
Avoid harsh soaps,lotions on penis.
Cool water sitz bath can be tried.
And see your doctor for further evaluation and management.
Feel free for further queries. It's good to discuss rather than quit.
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