What Causes Headache And Sudden Raise In BP After Suffering From Paralysis?

Hello sir namasthe !Iam from,tallarevu.my mother(age 60) has been suffering frm paralacies for 5 months. She's left leg recoverd,but not recovered left hand.she has the habit of drinking alcholic & smoke tobaco.MAIN PROBLEM ; Oftenly feel head ache, suddenly rise B.P. & neck nerves so pain so please give me the sugestion