Smoking weed whilst on Levitiracetam (Keppra)

I am 19 and have had mild idiopathic epilepsy since the age of around 10. Since starting university and throughout college I've had a lot of exposure to marijuana but alway turned it down out of worry! All the research I've done is very divided, a lot says its relatively harmless and sometimes helpful but then theres a part of the internet which terrifies me (people having 5 tonic-clonic seizures in a row after smoking weed etc). I have always responded well to medication and have never had a breakthrough seizure when being on meds, not even with alcohol and I've been quite drunk a few times. Im on 500mg of keppra twice a day. Does anyone know how risky it is to smoke weed on keppra or just to smoke weed with mild epilepsy? Any info would help a lot!