Seizure after smoking weed

I was at my friends house, and i haven't smoked at all that day. We went on a walk to a trail and i only had half a bowl of weed, which is a normal amount for me due to having asthma. I remember my vision getting blurry, not all at once but it lead to me just seeing blobs of color around us, I had ringing in both my ears as well. I thought i was still sitting on a log but from what he told me I had fallen onto the ground and started shaking with my eyes rolled back, he said he was going to call 911 but I insisted he not. I felt as if time was going by very quickly, i Don't remember loosing consciousness but then again he did tell me something i did not remember. More smoking information about is is that i use to smoke out of bongs before i moved in with my uncle, and now that i've been at my uncles for a bit i started smoking joints so i don't know if that had to contribute to anything that happened or if it was just simply because i smoked weed that day. He carried me back down the trail which felt like it was 10 minutes of running even thought he told it had only been 3. We went back to his house and at this point I started feeling better, i ate a bit and drank some water. Also throughout the day i did not have anything to eat, due to just not having money on me that day. I have also been smoking cigarettes for around 6 months, maybe even less.