Hair Loss 😢😢😢😢😢

Hey ladies, I been dealing with hair loss for about 7 months now! I use to have so much hair and my hair is long, thick and kinda curly! In March my grandma passed away and I’ve noticed since then I began to loose so much hair, I would think it was bc of the huge sadness I was going thru, till this day I’ve been going they a lot, a lot of sadness and overthinking and stress, and I’ve been loosing a crazy amount of hair I can say I don’t have not even half of what I use to have! Also my scalp hurts so much and my hair tends to get greesy but only the roots! Before I make my doctors appointment do any of you females know what could be causing me to loose so much hair?!! Please let me know!!