Welcome to HCM
We understand your concerns
Addiction is masturbation
is wrongly interpreted. Actually this is quite normal. The feeling that "there is something wrong with me" is addictive.
Masturbation though unnatural (not actually) is normal with every human being. May be frequency varies. Discomforts are also normal.
But if you start becoming anxious, it is really troublesome. To stop masturbation, there is only way, don't be anxious about it.
Find a psychologist
who can help you. I can help you online if you desire so.