Stacking Tirz and Reta for a couple of months was doing relatively good until I tried to change my source to a cheaper source and during that process I started having some lower back neck left shoulder and left elbow pain. May also have had some viral infection around that same time and slept on my left side the wrong way hard to say for sure but I switched back to my original GLP1 source and I’ve been back on the old source for about 14 days ( two doses ) , but my joints are still flared up, aspirin, and Toradol did not help me much. I started some BPC/TB 500 and seems to be helping some Question should I stop glp1 stack all together till my joints improve or should I keep taking them , if I had to chose to stop only one I would stop the Reta since I have been on the Tirz much longer and never had problems with it before.