Are you having fever? Have you lost weight in recent times? What about your appetite? Have you any history of tuberculosis in the past? Do you consume alcohol ?..........
You have written less about your problems.
The information you have given so far lead to various clinical conditions and some of them may be very serious in nature.
Seek urgent attention of a physician.
Next Steps
As of now, avoid heavy exercise, drink plenty of water. And again.....seek urgent medical care.