What Causes Bad Reaction Of Taking Marijuana?

I am 17 years old. 5 5, and 140 pounds. I have no medical history to be concerned of. I was taking prozac for depression and one night I smoked a very small amount of marijuana. I had a very bad reaction that night, and the high feeling lasted until a couple days after. The night that I smoked I felt like I was dying, I had cold sweat, and my emotions would not stop going up and down. I was shaking and it was the worst feeling I have ever felt. The next night i took my prozac then went to bed, at 5 in the morning I woke up and started to feel extremely high again and with some of the same symptoms as the night before. I got up to get a drink and passed out in the hall closet. I have not told my mom about why I passed out. Since that night I have never felt the same. I feel the slightest bit still high everyday and its been a month since that night. I have a bad memory now, and am always stressed out over this. I am very scared that this feeling will last forever.