I was diagnosed with ptc in 2002,and had a lumbar shunt put in. Recently,have had horrible electric like head pain,that occurs when bending over. Had a spinal tap done,but it appeared normal,but the dr. never did it when I was in a bent over position. It has limited what I do,as it seems as if,when I do bend over,will have a terrible headache all day. Can't find a dr. to give me any answers and am desperate to feel better.