wow got to say this is the first and probably the last time i use this site. A wind up? Do people really do wind ups on a DIY site? I think if they do they should stick to their day job as they are clearly not funny. anyway am at work and so on my phone so a bit difficult but thank you for those that told me to talk to an electrician, i spoke to one at work and he has said its something to do with earthing and bonding and to not use the bathroom. Will reply in detail when i get home.
OK I am now at home, as I say, thank you to all that tried to help, I do not understand electrics but this was a reply on another forum and also pretty much the same as what the Electrician at work said
"Call a qualified professional electrician to inspect and to verify that all of the ground rods in your system are properly bonded to the ground buss in your power panel. I am suspicious that the ground and the neutral are not properly bonded and that somehow, a line is trying to use the cold water as a neutral return line for you system. When you were touching the cold water, you tried to complete a ground return to through the wall. This could be very dangerous, possibly fatal. Call a qualified professional electrician to do the work first thing in the morning."
To those that said this was a wind up, then quite honestly you should be ashamed, just because you don't know an answer to something, does not mean it didn't happen, its just means you don't know everything! I was at my wits end, I am a single mum with 3 daughters in the house and I had no idea what it was, I know nothing about electrics, the best it gets is me changing a light bulb. I didn't know if the whole house had faulty wiring or just the bathroom, I just needed suggestions, I was always going to call an electrician but what I didn't know was if I had to turn off the electricity at the mains until an electrician could get here or to just not use the bathroom. Its a horrid feeling not knowing if your child turning on a light switch or the TV would be the cause of them being electrocuted. By you saying it was a wind up, you trivialised my enquiry, an enquiry which as it turns out could of been potentially dangerous.
Will think again before asking advice.