Help! - I'm scared I'm starting to have seizures again

Hi Ok so Im 16 years old and have had E since i was about 18 months, I dont remember any past seizures or what I had Im just going by what i was told, (i used to collapse and be unconcious for a few seconds, and not have and memory of doing this) i stopped having these seizures when i was around 7 or 8 years old, and was taken off of my medication around that time also as my medication made me forgetful and unaware of my surroundings. Recently ive started having "episodes" where i will stare into space for about 30 seconds and although i can hear whats happening around me i'm not really processing any of it, I always just thought that i was just daydreaming but earlier today at college I tried to reach out to the fence in front of me only to found that the fence was further away than I had originally thought, I reached out again and the same thing happened. I blinked a few times and my dizziness cleared. I also find that i keep having moments where i am staring at something (usually a light, or a white wall) for a few seconds and dont even realise this is happening until someone asks me if im ok. I havent had any pain in my head or jerking movements so I always just presumed its down to stress and tiredness from college, but my hands occasionaly shake very lightly after these moments (they just started doing it) I'm starting to worry i may have started to have seizures again.