Why hasn't my sperm discharged for 2 months at 16?

Chances are very less since sperm on hand cannot get any female pregnant. 

Itching is a common symptom of infection or irritation after a week and a half of masturbation. Gently clean the area, avoid using strong soaps and wear loose clothes. If it continues, stop masturbating for a while and check if there is any difference. If there is none, seek medical attention.

Premature ejaculation is treatable. Relaxation techniques help. Improve by practicing the "squeeze technique." It is also possible to try topical anesthetics. Consult a doctor for further advice.

It sounds like you're experiencing stiffness in your head, neck, and body, along with changes in the shape and size of your head and face after masturbation. This could be due to muscle tension or stress. Difficulty recalling information may also relate to this stress. It's important to practice relaxation techniques such as meditation or exercise. Make sure you're getting enough sleep, and consider talking to a counselor about your concerns.

One reason a man may not last long during sex is his inability to finish quickly enough, which can cause worry. Anxiety or depression might also contribute, making it hard to feel inspired or happy. Techniques to help with this issue are available. For instance, relaxation exercises can improve endurance, and wearing condoms might help. Open communication and mutual trust between partners are also important.

It's common to wonder about sexual performance, particularly if you've been engaging in masturbation quite often. Fast termination during sexual intercourse is called premature ejaculation (PE). The symptoms of PE are being unable to command when you ejaculate. Too much masturbation can be a reason for PE. Reduce the frequency of masturbation- practice methods of delaying ejaculation like the start-stop method, and- communicate honestly about your worries despite finding this advice difficult. 

Nightfall or wet dreams are normal for a teenage boy. This is your body's method of discharging the extra fluids. Symptoms include having an ejaculation during sleep without being in control. Causes can be hormones or sexual thoughts. To help, you might consider calming activities before bed and avoiding spicy food.