Could My Hair Loss Be from Stress from Months Ago?

My hair has been a little bit thinned at the back of my head for the last couple of years, not noticeably. The last month out of nowhere my hair has started coming out from there. i wake up there is like 10 hairs or more on the pillow, then the same when i wash and dry my hair or run my hands through my hair. my head is little bit itchy. could this be caused by stress from a few months before?

Stress is a cause of hair loss and it occurs over time. You need a diagnosis so get your hair mapped out for miniaturization to determine if you have genetic hair loss behind what you are observing.