Been cycling for 8 weeks 250 test e twice a week, been rotating delts and glutes with a 23 g 1 inch pin. First 6 weeks and painless injections. The last 3 were very painful, bruising pain for few days after. Any ideas why this is? Thinking of trying a quad next time, but many members on here have reported bad pain when pinning quads. Any advice please on why it's started hurting and whether to try quads I would appreciate a lot