Did I overdose on dxm or just a bad trip/panic attack?

well I know dxm isn't the smartest thing, but it was my decision, so don't give me ****. My friend brought over 3 bottles of tussin and we both drank some around 8pm, just a little, because we were waiting for the rest and it takes an hour to kick in, and around 9-9:30 we were pretty much high. around then we decided to go downstairs and finish the bottle. It was enjoyable like other times we've tried dxm, we were laughing and dancing and chilling out. Around 10:20 I decided to drink another bottle, and she just kept at one. I became a bit depressed after about ten minutes and I was laying on the floor when the other trip hit and I couldn't get up, but once I did I started looking around for people who I thought were in my house and jumping off things trying to kill myself. I was freaking out cause I thought I was gonna die and she tried to calm me down but I started scratching myself and I eventually fell down. I couldn't move at all, and every time I got up I felt sick. I blacked out for about 20mins and came back in the bathroom and I threw up about 5-6 times. I came back and forgot alnost everything and I thought I wa going to die, and I couldn't stop shaking, my whole body couldn't stop. I started throwing up more and eventually passed out. I felt so weird I remember having scary hallucinations and thoughts and I had no strength. Could I have drank too much? Or just a bad trip? I weigh about 105 lbs.