To be absolutely brutal and honest with you, nobody cares about I look forward to hearing from you.. The practical reason is that it's one of the various standard and conventionally polite ways to end the body of the letter. It's just a standard exit.
1 In some cases, liver failure causes this taste to occur. 2  Gastroesophogal reflux disease can cause the salty taste (even when no pain is present). 3  Some medicines can make everything taste odd. for example the drug enalapril, which is a drug used to prevent heart failure.
You will likely feel the phlegm against your tongue if this is the case. You can speed this up by blowing your nose. Bacteria: If you have not brushed your teeth frequently enough then this can cause a build up of bacteria in your mouth which can not only cause a salty taste but will also tend to smell rather foul.