The menopausal symptoms cannot be so severe and do not start so acutely as you have described here. So mostly they look like that of psychiatric nature. Being perimenopausal is additional worsening matter. But not necessarily all the women who have had healthy and normal reproductive life suffer from perimenopausal symptoms. Now she's out of the acute phase, select a good psychiatrist
and general physician. Both will take care of her mental and physical symptoms by prescribing appropriate medications. Before that the general physician will also make her undergo certain tests to rule out common disorders at this age like diabetes
, etc. Having fluctuating blood pressure
will be confirmed by the physician and treated well. So do not worry and take her for appropriate further management. good luck.