Blue Swollen Skin after hanging

Im hanging for a few years now (no results but I kept my length and that’s the most important thing) but my skin keeps swelling up and becomes blue. Now that I increased the weight its even worse. the blue skin instantly recovers after I take off the vacuum hanger and my tape. The thickness recovers after a few minutes.

What am I doing wrong? Is this bad or can i just ignore it? I hang around 14 days in 4 months so its not like im overdoing this.

Thanks