Ob/Gyns like to prescribe patented hormones that are similar but not the same as the hormones your body produces. Bio-identical hormones are synthetic hormones that are exact bio-identical copies of natural hormones. They cannot be patented because they are natural.

There are many practitioners who understand how important proper hormones are to functioning well in stressful environments.

Some who have suffered brain injuries seek out neuro-endocrinologists who understand brain injuries.

Your relapse of PCS is not uncommon. Sleep, diet, and stress can all cause a relapse.

Zoloft is an SSRI, Selective Serotonin Reuntake Inhibitor. It works by increasing serotonin levels. Some do not respond to it well. One dose or even a weeks use will not harm you. It takes weeks to build up enough blood concentration to be effective. The first few days of an SSRI can be miserable.

Google Post Partum Depression and 5-HTP. 5-HTP may be helpful for you without causing the Zoloft side effects.