Gave birth 3 weeks ago, i'm always worried, exhausted, dehydrated, can't sit still, can't sleep?

Stress/anxiety: may be the culprits; however so can underlying metabolic and endocrine disorders. I suggest a thorough medical exam with emphasis on blood sugar and anemia. If all tests are negative, I do suggest a consultation with a certified clinical psychologist to rule out anxiety and depression.

Get eval: Call your obgyn or midwife now. This may be baby blues that are often brief and mild, or could be the beginning of a more serious depression, do not hesitate, get help now .Treatment is available and effective.