I would like to know, that why my mother is doing; 1) Very possessive about her phone only. 2) She use to cry alone. 3) She use to do self talking. 4) Her memory found to be weak. She is unable to identify family members. Till August 2018 she was absolutely fine. She use to cook and she was having good memory. But in Sep 2018 when she was hospitalised the aforesaid issues started slowly. Please let me know. Thank you She have; 1) Thyroid 2) Heart Pumping issues  ( 1.5 litre Water per day only) 3) Arthritis 4) Diabetic 5) Gallblader stones