phlegm on my throat

i just want to ask something because i felt naot good for the couple of months ago..ive tried to see a doctor but no diagnoses they have.

My problem was the phlegm on my throat...im not coughing though nor colds...just only the plegm on my throat that i want to get rid off..!

Everytime i swallowed i felt like the plegm stock on my throat..what do you think that is?

Is this a serious illness or what..thank you and godbless!

[National Jewish Health]

The main causes of phlegm in the throat, without cough would include chronic inflammation, either allergy or infection, of the nose and/or sinuses with postnasal drip, chronic bronchitis usually due to smoking cigarettes, asthma and acid reflux from the stomach, often called gastroesophageal reflux disease (GERD).  The seriousness of the mucus depends on the cause.  You will have to work with your doctor to determine the cause and then get the proper treatment for that cause.

Good luck.