I got a VP shunt put in 8 weeks ago for obstructive hydrocephalus. I recently had my shunt adjusted 2 setting more open. Now that side of my head and neck feel like it did the first couple of weeks - tight and like there is something foreign there. There is no swelling to suggest a CSF leak or an infection. Also my pulsatile tinnitus is back. Are these typical or should I call my neurosurgeon?