Why when i wake up, specially when i wake up too early i feel very anxious. then it pass but during the day i feel like my body is hurting and exhausted, even my stomach feels bad. if i take a nap i feel better but that's not always possible..?

Obviously, something is not going right for you. Those symptoms can be from many different things. Heart disease with unusual rhythms, thyroid disease, anxiety/depression, medications, and many other causes are possible. I recommend seeing someone who can do a thorough history and physical exam to see what might be happening and to direct any labs or testing. Good luck!

First please have a complete physical exam by Doctor to know if you have an illness. Please see a Clinical Psychologist with expertise in multiple types of psychotherapy for a diagnostic evaluation and for help. This will help you to know if you need medication from a Psychiatrist.

A good place to start is to make sure there are no subclinical medical problems underlying the symptoms. So a good History, Physical, and appropriate investigative studies with the PCP should be arranged soonest