I loved coding for a short period of time before work stress made me hate it. I went from Developer for 4 years to Sales Engineer for the past 3. I'm now completely exhausted of joy for Sales Engineering and now want to get back into something purely technical, but not sure if my Development PTSD from my past company is done.

What can scratch a similar intellectual itch as coding that doesn't come with the same stress? Data Analysis? Technical Writing?