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.
When there is disruption in the nerve signal due to nervous disorder like stroke or seizure, you may have this problem of getting sweet taste in mouth. Diabetic neuropathy can also cause this problem of experiencing sweet sensation in the mouth. Treatment: You need to consult your doctor if you start sensing constant sweet taste in your mouth. He would find out the underlying cause for this problem which is only a symptom of some other disease.