Whether, you have head injury or not, it is never too wise to smoke weed or marijuana. Since it crosses blood brain barrier it can result in impaired perceptions and coordination, difficulty in thinking, learning, concentrating and problem solving, and memory will become poor. In a setting of head injury, this can result in confusion regarding whether the symptoms if they appear are due to injury, or due to weed. Hence it is advisable not to smoke weed. Do talk to your treating doctor regarding this. Take care!
The medical advice given should not be considered a substitute for medical care provided by a doctor who can examine you. The advice may not be completely correct for you as the doctor cannot examine you and does not know your complete medical history. Hence this reply to your post should only be considered as a guiding line and you must consult your doctor at the earliest for your medical problem.
Thanks,I was just wondering because i used to smoke lots.