starskulker
Active member
The past week my lower back has been killing me. I am on a test/deca/winny cycle that I started a few weeks ago. I know it's not the test causing the back pumps becuae I have been on it for quite awhile where as I just added both winny and deca recently. Would either of these be culprits in causing lower back pump? It starts killing me even after brisk walks.

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