Dear
Welcome to HCM
We understand your concerns
I went through your details. Please understand,
masturbation is natural and normal. Masturbation cannot harm your health, sexual ability or it cannot reduce your penis size. Your
back pain, weakness are not attributed to masturbation habit. Hand shivering and legs shivering are not due to masturbation habit, but are due to apprehension and
anxiety.
Your penis size is 5 inches erect. Average male penis size is 4.5 inches. Even a 2 inch erect penis size will be able to satisfy any woman across the world. Your all these trouble are due to lack of knowledge about sex, sexual organs and procedure.
Premature ejaculation is also due to the anxiety and obsession arised out of wrong knowledge. I suggest you to
consult a psychologist online or in person for counseling sessions.
If you still need my assistance in this regard, please use this link. http://goo.gl/aYW2pR. Please remember to describe the whole problem with full detail.
Hope this answers your query. Please feel free to post follow up queries. Available for further clarifications.
Good luck. Take care.