Hello and welcome to Healthcare Magic. Thanks for your query.
Your symptoms could be part of a post-concussional syndrome. In individuals who have had a recent head injury
/ concussion, substances like alcohol, marijuana, etc. can cause a worsening of symptoms or result in fresh neurological / psychiatric problems also. So, I agree with your neurologist
that in such cases, it is important to avoid these substances.
You have mentioned that you have had brain scans and your neurologist has ruled out any significant brain pathology. You also say that your tingling
sensations have decreased after abstaining from these sensations. So, it is likely that you will continue to show gradual improvement and eventually recover fully. Taking alcohol or marijuana occasionally again after this is your personal choice.
Dr. Sheeba Stephen