Starting off with flatline

...okay...so this might be a bit different from everybody else's story but here it goes:

2 days ago I woke up and my penis felt flatlined. Couldn't move it all. Barely got morning wood and just felt a huge difference in my penis. I was so stressed the entire day I work I rushed home to masturbate just to see if I can still get a hard on. Even by watching porn I barely got an erection and ejaculated in literally 2 minutes....that may have been caused by my stress since I was literally yelling and pulling my hair out while driving home. I was super stressed. I first discovered about PIED 6 years ago when I was 21. I had the same problem. Went to sleep one day and felt like I couldn't move my dick. I went to a trip for an entire month and didn't masturbate/watch porn/have sex for that entire month. Came back home and felt normal again. Started jacking off and watching porn again. Not quite sure if this is PIED because although i do watch a lot of porn isn't it only qualified PIED if you can't get an erection in real life but still could get hard as hell while watching porn? Any advice for me? I already went to a urologist and paid $300 cash because I couldn't wait to have my insurance refer me to a specialist. That would have taken an entire month. I went to the urologist and he just said that my stress is causing me not to get an erection. I'm so confused and scared. I'm 26, healthy, don't smoke, have NEVER taken any drugs (not even weed). I am an alcoholic though. I've been drinking excessively for the past 3 years. Would that also be a reason?