Increased  Intracranial  Pressure
Relation to CSF
   The absorptive velocity  of CSF depends upon the pressure difference between subarachnoid space and venous sinus.
   If excessive formation,obstructive circulution and disturbanced absorption ...
Headache:
The commonnest symptom which often arises at morning or evening and with forward radiation to orbit, aggravated  with increased ICP.   The headache can increase when coughing, bending down, lowering one’s heads. 
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