I will oversleep &amp; be in an exhausted brain fog(kinda numb) for months then one day boom! Clarity, I can plan &amp; finish things, sleep 7-8 hrs, normal except a little more emotional. This also lasts for months, repeat. I haven't found a correlation. Been on several antidepressants &amp; anti anxiety they have &amp; currently help but never stopped this cycle every few months back &amp; forth. Any insight ? (I'm 27 female)