input: What you think is a headache caused by fatigue stress or hunger may be something more serious
fixed: What you think is a headache caused by fatigue, stress or hunger may be something more serious.

input: These demos illustrate the power of a truly integrated booking engine on your website
fixed: These demos illustrate the power of a truly integrated booking engine on your website.

input: The symptoms of Chagas disease can be quite variable and range from no symptoms to severe
fixed: The symptoms of Chagas disease can be quite variable and range from no symptoms to severe.

input: If you know the name of wrong DLL like mobsyncexe choose Free downloadsaving money
fixed:
If you know the name of wrong DLL like mobsync.exe, choose Free download--saving money.