I am having an issue with the content of the emails I am sending, it is not getting displayed.

I type my content and send the email. However the email reaches without content: the whole content area is empty as if I did'nt write aything. 

The first few words of the content appear on the email title but only on the receiver's inbox, and not when opening the email.

Anyone can help me fix this please? I swear I am sober.

Thanks.