Welcome to Just Answer
I need to get some additional information.
When did this problem start?
Is it constant, or only after eating?
Have you recently had a cold or a sinus infection?
DO you have sinus problems, including allergies?
Are you on any medications?
Do you have any illnesses?
Thank you for the additional information, I need to ask just a few more questions please.
Have you recently had any dental work performed?
Do things still taste the same, or is the ability to taste properly a problem as well?
Have you been exposed to any chemicals, including bug sprays etc.?
Any recent surgeries?
It is very likely you have developed a taste disorder. The reason for taste disorders are sometimes unknown. Other times they can be from Medications, Exposure to chemicals, dental work, surgery, illnesses, or infection.
You need to see your doctor to determine if there is an underlying infection, such as sinus or respitory infection causing your symptoms. If this all checks out ok, then yes being exposed to chemicals in a swimming pool can possibly cause this, if the chemical were inhaled, or ingested.
Some taste disorders go away on their own, while others are stopped by determining the underlying cause of this disorder. It could be something such as an infection in your tooth, or tonsils etc., that you are unaware of. You should be fully evaluated, antibiotics may be needed to clear an underlying infection. If no known reason is found, then it is likely this problem will clear up on its own. This may take a few weeks. Thank you