Welcome to HealthcareMagic Forum
You need to understand following thing:
4-5 times in a week doses not cause weakness or long term sexual dysfunction
-Many time excessive intrusive sexual thoughts and images can be part of illness like OCD
. Get yourself evaluated by psychiatrist
to rule out OCD.
-Last: do not worry, just seek professional help, if this problem causing much distress in your life.
I hope this information has been both informative and helpful for you.
Wish you Good Health.
Dr. Ashish Mittal