Okay. It's quite possible that your trouble smelling things could be related to a medication you are taking. Be sure to talk to your doctor about this -- your sense of smell may improve if you stop or change one of your medicines. However, be sure to check with your doctor before making any changes to your medicines.
Just a couple more questions about your trouble with smells.
Do you smoke? Are you exposed to any airborne chemicals (such as fumes or solvents) on a regular basis?