doubledutch

just noticed today a strange noise coming from the front drivers side suspension 'wellit sounds like it`s from there'. when i go over a sharp bump in the road im hearing what sounds like 2 plates chang together , like the noise you get when you run over a loose drain in the road .. just woundering if any tou guys have came accross this propblem , and would be able to let me know what it could be as i`m a bit nervous of driving anywhere now . checked it visualy and cant see anything broke .......any ideas????