I think exploration is the best way to get in touch with a new area. One of the most exciting things is finding new places to shop, eat and spend time with family. Once you're acquainted with your new surroundings you'll start to meet new people and have some fun. Even if you're not hungry make yourself eat a little and try to exercise to help get to sleep at night.
Every individual passes through this discomfort with the change of environment. This is very normal to have some ups and downs during the period of transition to a new environment and culture. However, you can cope with it by remaining in touch with people at home while you are away through various communication gadgets.