"Brain: Hey! This scary thing I'm now experiencing must be incorporated into my behavior."
"You: Yay, I now have a phobia of something!"
I came here to write something along these lines.
About a year ago, I ate _way_ too much cannabis before a party then proceeded to have a terrible trip. The subtle meaning in people's interactions, which I had always been able to respond to intuitively, suddenly became apparent and burdensome. I saw a man who did not receive enough affection from his wife and spoke needily to others, reaching out for warmth. I saw a woman who appeared to be dissatisfied in her marriage, lingering just a bit too long in hugs with other men. I saw a man who was uncomfortable with parties, and wanted to corner me in a private discussion so he could disengage from the group. The feeling that these people were unable to mask their deep and private needs in this public forum combined with the feeling that something was expected of me that I could not give sent me into a spiral of embarrassment and nervousness.
Becoming terrified that I would be unable to control my emotions (that I might begin weeping in front of everybody for example), I disappeared without a word to hide in my car. Fearing that I would be seen and mistaken for a criminal waiting to commit a crime, I tried to stuff myself into a ball on the floor of the backseat. I was convinced that someone would see me and call the police, and I'd be arrested because I would be unable to communicate with them. The fear was so intense that I could feel myself shivering, and when my wife came to rescue me I was unable to speak in a steady voice.
Over the course of the following year, I struggled with depression and crippling social anxiety, which I had never experienced before. Things as routine as taking my cat to the vet were a real challenge, and I relied on Xanax to get me through a number of totally banal interactions which I had previously handled automatically. Granted, I was also experiencing intense social isolation and a weakening support system due to unrelated factors - I cannot definitively pin my struggles on this incident with cannabis. Still, it scared me enough that I began researching and critically examining my cannabis usage.
Ultimately I decided that it would still be a part of my life, but that I would no longer use it in public settings, that I would be exceedingly careful with dosage and reduce my usage in general, and that I would examine my current state before using it. I've recovered 100% from the depression, 95% from the anxiety (I still feel mild nerves speaking in group settings, like introducing myself at a meeting), and I have never had a bad cannabis experience since. I have also decided that using other drugs with psychedelic effects is not worth the risk for me, and I have sworn off them altogether.
I can attest to the fact (anecdotally) when you consume cannabis orally, you gain this meta-insight into social situations. But, this new found social consciousness varies from person to person.
Whereas you had a fundamentally negative experience, I've found the ability to discern people's subtle, true intentions in social settings to be quite comical.
It could be possible that you are a slightly anxious person by nature, in which case cannabis is probably not a good idea.