A year ago I took some sleeping pills for a month and woke up one day with a hangover. I was fatigued, dizzy, lightheaded, and my eyes felt tired. Since then I have not recovered fully from that hangover and to this day I get headaches regularly especially on one side of my head with eye pain. I also can no longer tolerate alcohol or marijuana, I used to smoke all the time and drink occasionally but now when I use either the feeling in my eyes is exacerbated. I have done many tests and since then no one has figured out my problem. Thank you for taking the time to read and respond.