When we moved in our house it had most fittings removed (switches and ceiling fittings) so i re fitted everything that was missing and until now its been okay, we recently improved the downstairs shower room, prior it had a wall light and shaver connector but never worked, now the room is nearly done i fitted a new wall light but its always on so i removed ceiling light fitting to look at wiring, 2 of the red are a little black, i decided to remove one at a time, after loads of different ways i put them all back and now im getting a shorting sort of sound when i switch main on! i think one i may of disturbed one of the red wires that had previosly blown making it have a connection, what the bl**dy hell is going on, my heads in bits