I feel unwell most of time, either it be sick, dizzy/lightheaded, pressure in head, pains in chest, i don't feel the same as i used to about 1 yearago?

Rest, exercise PCP: There are many medical reasons that can cause your symptoms. In general a 22 yo female feeling of "well being" can be enhanced with a good nutritional diet, exercise and and good sleeping habits. You should limit alcohol consumption, don't smoke and eliminate recreational drugs use. A regular schedule visit to your PCP with a serum chemistry, thyroid and anemia panel are advise.