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.
Eating acidic foods and foods that are too spicy or salty can make the taste receptor buds to swell. This is because acidic foods such as pineapples irritate the tongue and makes it swollen. Other foods that are known to cause similar symptoms include: 1  Lemons.