Hello and welcome to Healthcare Magic. Thanks for your query.
The symptoms which you have described are multiple and vague. With the limited information which you have provided and without interviewing / assessing the person is not possible to say whether these symptoms are indicative of a specific drug abuse
There can be various reasons for a recent change in behaviour - stress
, psychotic disorders, etc. and treatment should be targetted according to the likely cause. So, I would suggest that you take her to a psychiatrist
for a detailed evaluation and further treatment.
Wish you all the best.
Dr. Jonas Sundarakumar