What Causes Headaches And Convulsions?

My name is kathryn. I had a tramatic LP done in Oct 2010, RBC 650, I guess to be normal. Had to have a blood patch, severe spinal headaches. As the weeks went past, my whole system changed, including eating habits(loss of appetite, weight loss, HBP, now vision problems, and headaches on the top of my head. I am now on klonipin, things are horrible in my system, small type convulsions, tingles in my back. Doctors have run many tests- I cannot even drink water without some type of reaction taking place. Any advise.