Thanks for choosing health care magic for posting your query.
Its not clear to my understanding that why with such a long cut you have not seen a doctor. You should have done it immediately.
Secondly regarding your hallucinations
, in case if you are not having preexisting mental illness then it is the sleep deprivation
and the pain of the cut that is causing you to hallucinate.
If you are having a pre-existing mental illness then it is possible that there is a recurrence.
What ever be the issue you need to see a doctor in ER to help you with the wound first. It could get infected and then there could be a serious problem. Moreover if it is not taken care of then cosmetically also it will be a problem.
Hope I am able to answer your concerns.
If you have any further query, I would be glad to help you.
In future if you wish to contact me directly, you can use the below mentioned link:
Wish you good health,
Dr. Srikanth Reddy M.D.