Hi Liam

Shunts are actually quite durable things - it takes A LOT to actually damage one. I have never had to have a replacement due to damage to the shunt. As for a shunt blockage, the usual first signs for me are vomitting and nausea, and then a very distinct "pounding" headache in my forehead that gradually (but quickly) gets worse.

I have had a shunt for 35 years, and I find the only way to live a remotely "normal" life, is to not even think about it. Of course you still know that it is there, but don't let it consume your every waking moment !

Nat.