Iâve been using mk677 20mg daily for 2 weeks with cjc dac. I started getting a tight feeling in my heart especially when I lay down on my right side and hold my breath. Has anyone experienced this, or know of a solution? I havenât heard of this side effect, so Iâm not to sure how to proceed, so any advice/insight is greatly appreciated. (I tested my blood pressure and resting bpm, Iâm in healthy ranges) Full stack CJC DAC Mk677 taken before bed to avoid hunger Retatrutide Cardarine Enclomiphene Slu pp 332 5 amino 1 mq Glow blend (bpc 157, tb 500, ghk-cu)