I been getting fluid retention at the base of my penis every time I pump. I do 5min pump for a total of 15min with gradual increase in pressure. By the time I am done with my last 5 min, I notice that there a large fluid build up at the base. I have the hydromax extreme x7 and I need help minimizing the fluid retention there. My penis is however does not have as much fluid retention as does the base.