I had convulsions, nausea, vomiting (to the point of bile), migraines, fever, hot and cold flushes?

I’m a 19 year old female with no medical history (besides an allergy to penicillin). Recently, I have had a reaction that has concerned me. After a night out with friends, the next day I had convulsions, nausea, vomiting (to the point of bile), migraines, fever, hot and cold flushes. I had drunk a glass of water per standard drink and had eaten before and after drinking. As this had only occurred for the first time, I decided I must have drunk too much and I left it. Recently, I went out with friends again, I had no more than 10 standard drinks over 8 hours (I have drunk more than this before with the same types of alcohol and had no reaction), however I had this reaction again, but more severe. I had all the same symptoms, but my convulsions were more severe and lasted for a longer period of time, I also was semi-conscious (fading in and out), I had some visual and audio hallucinations, and my hot and cold flushes were more extreme. Most concernedly, I felt an intense cold, stabbing pain in my liver (as in, in the specific area where I knew my liver was, and to me it felt like I could feel the entire organ go cold and shut down). This again was all the next morning, and I had eaten before and after and drank at least one glass of water per standard drink. As this reaction was more severe, with less alcohol, and with alcohol that I have drunk before but with no reaction, I am very concerned as to what is causing it. I know it isn’t the type of alcohol, the amount of water, the meal’s I ate, or the amount of sleep I had had already.