lately all i think about is fucking toking a bowl. and then when i smoke its like hard to breathe and i feel like imma have a heart attack. Could this be the fact that i smoke a lot of cigs? Is the weed just dank as fuck? And i do have some xanax so wud it help me w/ this?
I have the same problem as you. Since I don't have all the details, I can't say for sure, but here's some info that might help explain your problem.
A lot of people have the impression that pot is a miracle drug in that it has no negative physiological effects aside from those caused by the smoke. This is not true. THC causes delayed gastric emptying, meaning that what you have in your stomach stays there longer. When food is in your stomach, it continually stimulates the release of digestive acid. On top of this, THC causes the lower esophageal sphincter (the valve connecting the esophagus and stomach which opens to let food into the stomach and then closes to prevent acid from refluxing) to relax. You can see where this leads. Excess stomach acid easily refluxing due to a malfunctioning valve. What people don't realize is that acid reflux is not always felt as heartburn. It can be felt as a tightness/pressure in the chest and can even cause your larynx to swell causing difficulty breathing, hoarseness, and throat pain. It also interferes with peristalsis of the esophagus causing food to move more slowly through the esophagus. This can cause a feeling that something is stuck in your throat or distended feeling in the chest. These symptoms are actually worsened if you ingest your THC, because your often taking a higher dose than when you smoke. I thought I could get around the horrible chest problems by ingesting my THC, but I found out I just had to quit using THC altogether, which definitely sucks, but I ended up with an eroded esophagus and a voice so hoarse I could barely talk. Had to have a nissen fundoplication (surgery where they wrap your upper stomach around your lower esophagus to strengthen the valve to prevent reflux) to get my esophagus to heal.
Also, if the reflux goes on long enough, your esophagus and throat increase in their sensitivity to pain as a result of constant painful stimulation. This is a phenomenon known as Visceral Hypersensitivity. The sensitization occurs in the peripheral esophagus and also centrally in the dorsal horn neurons, the same spinal region that mediates sensation in the heart. So you become more sensitive to your heart beat, and it feels extremely intense even though it's beating normally. This happened to me and now even though my esophagus has healed, I have chronic pain in my esophagus and throat, and I feel my heartbeat every moment that I'm awake. I have always had digestion issues, my whole life. So I was particularly susceptible to these issues, but I wish I had known that weed could aggrevate these issues before I started using it regularly... Oh well. Also, this sensitization usually occurs temporarily on many occasions before it becomes a chronic situation.
Obviously, this doesn't happen to everyone, but I have definitely heard a lot of accounts from friends that they have the chest tightness, feel like your having a heart attack thing when they smoke and even moreso when they ingest...
Just something to be aware of as many people are under the impression that THC is harmless physically.