Hi,
I do understand your concerns regarding
masturbation. However, your concern regarding it is mostly misplaced. It is a normal physiological process. Once a person becomes sexually mature, semen production starts which is a continuous process. A person then either has sex, or masturbates and has night falls.
Masturbation doesn't lead to any physical or mental health problems. It also doesn't make anyone weak. You can masturbate as much a you want and it doesn't lead to any problems.
Your problems of feeling weak and pains might be due to some other physical or psychological condition. Some blood investigations like complete blood counts, thyroid profile, vitamin D levels might be required to rule out nutritional deficiencies or
thyroid dysfunction. In no physical cause is found, treatment with medications like escitalopram or
paroxetine for treating any underlying
depression and anxiety will be helpful. Please do
consult a psychiatrist for complete evaluation and initiating treatment
Hope this information was helpful. Best wishes.