Heaviness and mild headache All the time

Hello doctors, I'm software engineer. I've heaviness and m ild headache all time. When I wake up in morning from that time till to the sleep I've feeling heaviness. I went to 3 neurosurgeon, Two MD Medicine doctor, 10+general physicians, 2 psychiatrists, 1 physiotherapist and much more. Neurosurgeon are will experienced some of then from jupiter hospital, Manipal hospital etc, also consult with ortho doctor. I've done CT scan of brain, MRI of brain, MRI of cervical spine, Whole spine screening. In this diagnosis no positive results are come. All reports are good there is no issues in brain and spine. Now, I'm feeling that this disease can be unique which is undiagnosable. Maybe be rarest of rare disease. Please help me to get out of this pain. Its humble request to doctors if anyone has this kind of patient in own experience please let me know how we can treat this. Thanks and hoping that anyone can help me.