What could be causing numbness and weak erections in a 22-year-old after frequent masturbation? - #56166

Around October, I started experiencing numbness in my penis after frequent masturbation. Because of anxiety about the numbness, I continued masturbating from October until May. Since then, my erections have become weaker. I rarely get morning erections now. Sometimes I can get an erection, but other times I cannot. I often feel like I have to force an erection rather than it happening naturally. I previously had pain in my penis, and now I feel like I have very little sensation. I am worried that I may have caused permanent damage. I am concerned about whether this could be a nerve problem, a blood flow issue, or something else. I am 22 years old. These symptoms have caused me severe anxiety and distress, and I would like a proper evaluation and advice on what might be causing them.