I am trying to use the titlesec package to redefine some of my sections and subsections commands. I want the \subsection to have the text following it become wrapped but if it has a title define in it like \subsection{definitions} then it should have the title follow like normal with the title wrapping in with the text also. I can't figure out how to do it.
Below is a example tex file of my problem.
\documentclass[10pt]{article}
\usepackage{titlesec}
\titleformat{\section}[hang]{\large}{\thesection.0}{0.5em}{}[]
\titlespacing{\section}{0pc}{1pc}{1pc}
\titleformat{\subsection}[drop]{\large}{\thesubsection}{0.0em}{}[]
\titlespacing{\subsection}{5pc}{3.5ex plus 1ex minus .2ex}{2.3ex plus .2ex}
\begin{document}
\section{Purpose and Discussion}
\subsection{}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam dapibus est mauris, varius malesuada velit consectetur quis. Phasellus bibendum iaculis maximus. Sed at ante sed dolor tempor viverra et eu lectus. Aliquam gravida nulla non nisi dapibus, quis dapibus magna fringilla. Vestibulum non gravida magna. Sed rutrum commodo odio sagittis condimentum.
\subsection{definitions}
\end{document}
I am attempting to get it to look something like this.

Thank you for any help you are able to give.


\subsectiontitle seems very list-like. – Werner Dec 04 '14 at 19:14