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.
If your drinking water has a strong metallic taste, this is most likely to be caused by acidic water that has a greater potential to leach metals, such as copper and iron, from household plumbing and pipes. Sometimes drinking water may have a salty taste, which can be caused by a number of issues. If you live near the coast, your well water may be contaminated by seawater intrusion. Well water can also become contaminated by road salt in runoff.