Cocaine-related heart problems can manifest long after you stop using. The drug can cause permanent damage to your heart muscle, arteries, and even blood clots. I recommend reading this: https://unitedrecoveryproject.com/rehab-blog/heart-disease-and-cocaine-use/. It goes into great detail about how cocaine can accelerate atherosclerosis and cause hidden strain on your heart that builds up over time. A friend of mine with a similar story started showing symptoms a year after quitting drugs, and doctors attributed them to vascular strain caused by drug use. Initial tests showed nothing, but a cardiologist eventually found signs of restricted blood flow. He is now taking medication, making lifestyle changes, and is feeling much better. But the lesson is clear: quitting drugs is only the first step. It is vital to stay informed and proactive about your health.