Thank you for posting your query at DoctorSpring.com.
I have noted your details, and it is unfortunate that you have developed cognitive dysfunction after smoking crack-cocaine just once.
However, I would like to reassure you that there is no need to worry about that, as the cognitive recovery would be complete. Part of your symptoms are also related to anxiety. So, it would be useful if you can relax, and if anxiolytics are needed, you should take it.
In addition, cognitive enhancers such as piracetam and Ginkgo biloba would also help.
If you do not getter better in 1-2 weeks, then, doing an MRI brain would be useful.
I hope it helps. I would be pleased to answer any follow-up queries.
Dr. Sudhir Kumar MD (Medicine), DM (Neurology)
Senior Consultant Neurologist