So I've taken LSD 3 times, shrooms once, and DMT once, all over the past 2 years. 10 days ago was my third time taking LSD and it was a fantastic experience for me. I felt I had learned so much about the world, and believed that anything that I thought could happen would happen. And for the next couple days, I still felt like I was tripping a little bit. I still maintained a sense of euphoria and my mind had not gone back to normal (but I was ok with this then). 6 days ago, I was high and thought I might have been having a heart attack. I then thought about how since I learned on LSD that anything could happen, I convinced myself I was having a heart attack only to realize later that it was a panic attack. After this incident, I had been on the verge of a panic attack for about the next 24 hours. I was doing my best to keep positive thoughts or convince myself that what I learned on LSD wasn't true but I couldn't (and still have a hard time doing it). Over the next few days leading up to today I've been going from a state of near normalcy back to a state of anxiety and paranoia (the latter lasting longer), but haven't had a panic attack since. It's really hard to concentrate on schoolwork, and going to class has been making me anxious. Has something permanently changed in my brain that caused me to become addicted and I need to get help? or is this just withdrawal and I just need to wait it out? I'd say overall it's been improving, but I feel like I could fall back into panic easily if I let myself.