I have a very slow flushing pair of toilets in my garden apartment. They have air bubbles coming into the bowls speratically and there is noise in both of the sink drains when plunged. Fluid will drain out but no way on anything else. Help!! I have no place to go! :eek:

Sounds like you have a blocked vent. This would be the lavatory vent and it's reached from the roof. Shine a light down the lavatory vent and see if you can see anything down there? I've found everything from birds nests to dead critters. If you can't see anything you will have to. Snake the vent out.
Good luck, Tom