Approximately 7 Months Ago I Fell 30 Ft Off A

approximately 7 months ago I fell 30 ft off a cliff. broke my L2 vertebrae and cracked my head. I had bruising on my brain and it swelled for quite a bit my parents said. and I was just wondering, would it be bad to smoke marijuana? also I have 0 symptoms, only a small headache once in a while.