[hkarthik]

Wow, I had the exact same thing start happening to me, roughly 7 years ago as well. And yeah it comes and goes, even to this day. My head hasn't had it in a few years, but I get it on my beard occasionally. Sometimes clears up within months, sometimes persists for a year.

At one point a blood test did show a blip in my thyroid levels but not within the range of a diagnosis for hyperthyroidism.

Periods of stress can definitely induce it. Which is why I'm trying to exercise a lot more and reduce stress.