my boyfriend had neck and back pain. he said it didnt feel sore, but more like it was stabbed or something. he had leg pain too last time, it was followed by quite heavy headache, and maybe hallucination too (he said that he woke up and saw his body lying below). he went to see a doctor, who said that it caused by fatigue and gave him some vitamins. he's still 18 years old, about 175cm tall, and about 90kg. he refused to tell his exact weight.