Why won't foreskin retract when my penis is erect?

I understand your he­alth troubles. Typhoid, headaches, diabe­tes, urine infections cause­ discomfort. They may stem from infections or othe­r issues. Consulting a doctor is crucial for proper treatme­nt. Adhere to the pre­scribed treatment plan. Re­st adequately. Consume ple­nty of water. Opt for nutritious foods. These simple­ measures aid recove­ry. 

Burning when urinating, that uncomfortable­ sensation, may indicate an infection. Your urinary tract could have­ bacteria invading, causing irritation. Alternatively, a se­xually transmitted disease could trigge­r similar symptoms. Staying hydrated helps flush things out, but see­king medical care is crucial.

Testicular torsion is rather dangerous, thus the fact that you are getting in touch is positive. If you've experienced discomfort in your testicles for a year, it might be due to testicular torsion - that's when the spermatic cord is twisted. Symptoms include abrupt, excruciating anguish, swelling, and nausea. This needs an emergency medical intervention to avert the destruction of the testicle. Surgery is typically required to untwist the cord and preserve the testicle. 

Sounds like you may be experiencing premature ejaculation. Its a common issue experienced by many men, and it can have both psychological and physical causes. Doctors can suggest behavioral techniques, medications, or therapy as treatment.

It looks like you might have a condition known as paraphimosis. I know that’s a fancy term but all it means is that the skin covering your penis got stuck and now your penis is swollen. Pulling the skin back too much can cause this. The water blister might mean there’s an infection. You need to go to a hospital. They can take care of things and make you feel better.

Essentially, a varicocele occurs when the veins within the scrotum expand, causing them to fill with blood – but commonly without any symptoms. Some people might experience a kind of achy pain or heaviness. It is not harmful at all to masturbate when you have it. If the valves in the veins aren’t working properly this could lead to what causes them in most cases.