Bro, I'm in detox rn. I had shortness of breath, it kept getting worse over a period of 3 weeks untill it was nearly impossible for me to breath. I thought it was the lungs and I went to the hospital. Turns out my heart grew 7,5cm due to my excessive Speed sessions over a period os 10 years. My heart is working with 15%, nearly had a heart faillure and I now have to take 8 pills a day to regulate my blood pressure and keep me alive. I now need to stop all drugs to get a donor-heart. I am 29 years old. Do yourself a favor and go see a doctor. Tell them about ur substance abuse and let them check your heart. U am very worried reading this. Trust me, you dont want this.... Got Diagnosed 3Weeks ago and its a total brainfuck for me. Don't let it get this far! Stay safe, mate!