Fuse Switches Acting Abnormally

I have a fuse switch that is supposed to be responsible for my living room, and another responsible for the bedrooms. For some reason when i switch one of, instead of having the electricity go off in the room it is assigned to, it ends up cutting half the electricity in both the living room and bedrooms at once, causing lights to flicker. The only way for the electricity to be out in the bedrooms or living room is if both switches are off. Basically the two fuses seem to be interconnected which i do not believe should be the case. i need an electrician to check this for me to understand what is going on and if this is an actual issue that needs fixing.