Hi Floridahydrowoman

I strongly suggest you do get a shunt.
I have one myself, and Ive had mine since I was a toddler.

Having being told you have hydrocephalus, without the surgery for a shunt, you should expect some dreadful headaches as pressure rises more and more.
A shunt is there to prevent the pressure rises, of course they do come with complications, like blockage and infection.
If your shunt was to block, then i assume you would be in the position you are in now. If there were an infection, thats something new, and should there be a big infection, it can leave you in a nasty way.

If your pressure inside your head was to continue to rise, you could be damaging your brain, just of of it as two balloons being pumped up inside your brain, the more they get pumped up the more pressure on the inside of the brain. The shunt will give the fluid a pathway to drain away and relieve any build up.

Just for your information :P, I came back from Florida this morning, and back to the miserable UK