In the past when I cleaned the bathroom, I would leave the room with a massive headache because of all the strong smells that were found in the cleaning products. To solve the problem I make my own bathroom cleaner and I do not put scents in it. Here is a great Tub and Tile Cleaner recipe:

1- 2/3 cup baking soda
½ cup unscented liquid soap (Castille, Dr. Bronner's, etc)
½ cup water
2 Tbs vinegar
Essential oils as desired for scent - peppermint, eucalyptus, pine or lemon
16oz squeeze bottle

Mix baking soda and liquid soap in a non-reactive bowel. Dilute with water. Add vinegar. Stir until lumps are gone.
If the mixture is pourable, add the essential oils, mix and pour into the squeeze bottle. If it is too thick, add a little more water slowly stirring until the consistency allows pouring. Shake well before using.
Keep tightly capped, as this cleaner will dry out. Add more water and shake well if this happens.

To use:
Squeeze onto tubs, sink, toilets, countertops, wherever you would use a soft-scrub type product. Use with sponge or rag. Rinse well.