I been sick for 3 months and don't know what's worng in been weck and tird and lost weight

The . The answer to this question can only begin to be answered by a visit with your primary care provider. A detailed history, physical, and diagnostic testing will need to be done in order to figure out why you are "sick". Being tired and losing weight can mean many different things, and unfortunately i would need more information to even make a guess as to what you are possibly dealing with. Please see your doctor asap. I hope you find answers soon.