Paranoia after drinking and smoking weed, why?

I was drunk and then smoked weed with a friend. I smoked weed in the past and had good experiences with it. But this time after smoking weed I got really paranoid and started getting stressed and heard things that were not being said. in other words I started to hallucinate sounds. This freaked me out since I started thinking that my girlfriend and friends were conspiring against me to get her to cheat on me without me knowing. I had no choice but to isolate myself to stop saying stupid things to everyone. Why did this happen? can it be avoided?
Asked May 01, 2014
Don't smoke and drink at the same time
Answered May 01, 2014
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Answered Apr 17, 2019

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