Hello, I am new to this website and I am not sure what kind of advice I am able to get from this but I figured its worth a shot since I have no other choice. So I recently just came to japan with my girlfriend on vacation. I have been here for about 8 days now and have stayed in wonderful clean places. Now just 3 days ago I went to sleep and woke up around 2 pm and had a fever, felt dizzy, and felt extremely cold even though my girlfriend was telling me I was really warm. After that we went to go eat some rice and miso soup in hopes to make me feel better. After eating I went to sleep and woke up about 6 hours later needing to go to the bathroom with bad stomach pains. After going to the bathroom it was normal diarrhea in which I have sometimes seeing as diarrhea from my understanding is normal. So after finishing I went back to sleep. The next day I woke up I felt the same stomach pains and I went to the bathroom immediately. I noticed it just kind of squirted out and was all fluid. The fluid was a dark green color. So i figured that was kind of weird but was relieved that I would have no more stomach pain. Not even an hour later same stomach pains came along again same story with the dark green watery squirting. Now I am not sure what it is, but my girlfriend was telling me its a stomach flu. Now i would love to go to the doctors however I am not in the right country and I will be in japan for another month. This continuous serious of diarrhea has been going on the the passed 3 days and I have been having to go in and out of the bathroom ever hour to 2 hours. It seems I go to the bathroom at least 10 times a day for the past 3 days. I have tried not eating for one whole day and just drinking water but that hasn't helped. I have tried getting plenty of rest and it hasn't helped in fact my stomach hurts more when I lay down it seems. I guess my questions are whats going on? when will it end? can I make it end? is it a serious issue and do I need to go back to the states to see a doctor? is there anything that I can take that does not have to be prescribed?