Suggest Treatment For Constant Snapping At People Post Multiple Traumas

my mother who is the baby of her f.o.o. (eldest sister, 4 brothers, then her) is almost 90 and experienced loss quite early. In her teens two brothers next in age were killed in WWII, 4yrs apart - both aged 20 - and later she lost her mum when my older sister (her 3 child & 1st daughter) was 15 mths whereupon she miscarried - then another brother passed away at age 38 from heart failure when I was about 17 months; her dad when I was 5; then when i was married & with young children she lost her remaining brother and almost a decade later her only remaining sibling, the eldest. Her most recent loss has been losing her youngest from cancer when my younger sister passed away in 2013 after a 5 year battle. when my partner emailed a letter of condolence part of her response was to say I began grieving Heather s loss the moment she was first diagnosed and will go on grieving indefinitely . Which she has, not only for Heather but her own family as has been indicated throughout in her attitude toward others, her expectations of others and her behaviour toward others; e.g. snaps at people for no reason.