Is this normal when i'm high? (sorry about the long post)

Ok so about 7 or 8 months ago me and my brother smoked some weed I bought from a guy at school and totally freaked out, I haven't exactly been the same since. So I bought a gram from this kid at school on Friday but he gave me .5 so on Monday I told him he owed me some more and he was like ok come see me 4th block. So when 4th block came I went to his class and he handed me a dub sack cause he thought I was trying to buy but I said remember u owe me, he said how much did it make and I said a blunt(though when he asked earlier I said a blunt n a half) he said I thought u said a b and a half, I said yea barely.(he had this kind of strange look on his face and reached in his bag to get out what he owed me but this time he took about 5min to get it out, and I was watching the door to make sure the teacher didn't come. So he finally handed it to me(it was supposed to be some bubba kush, 1 bud and a small half bud and a tiny leaf, nothing really strange)and I went home to smoke with my bro, we rolled up and lit it and smoked. About two rotations in(we kind of smoked everyday and had a pretty good tolerance)my brothers like dude I feel like I'm on a cloud and I'm like I don't feel it so he's like hit that shit harder, so I hit the blunt harder and finally it gone after maybe 4 or 5 more rotations, about 3 hits per rotation. So when we come back in I kind of feel paranoid which wasn't a usual side effect for me, I usually tend to feel safe and calm, when I open my closet a stool in there rubs up against the wall and make a chime sound which scared tf out of me, because I didn't kno that's what made the sound. My brother was washing clothes and he finally come back in the room after getting his clothes, so he's standing and begins to lace his shoe(this is about 25 min in)so at first we're just high asf laughing at random stupid shit, and all of the sudden he say "Dude I'm glowing" and I literally see him glowing like from his stomach. then suddenly I notice he has Literally been doing the same thing for seems like 40 min(which is lacing his shoe, but he's on the same hole, this is kind of hard to explain) it's like he'll go to the hole but he won't go through, he'll just go down then go back up. Also it's like when I was looking at him I see like trees behind him(kinda like I'm looking in my perriferal vision) and it's kind of like he turns into a robot just doing the same thing over like he's in a trance. So when I notice this I quickly jump up and grab his arms and put them on the side of him and tell to "Stop dude, something isn't right" and he kind of gets scared or whatever and is like dude what you talking about, and I say man I think that weed was laced or something( while I'm talking I turn to our dresser which is beside him and when I turn to look back at him he's lacing the shoe again, so I put his arms back on the side of him and tell him to stop, he then puts his arms behind him like a police would and is like dude why you acting like a police, he starts walking to the room door and is like dude why you holding me like a police(please note that I'm not touching him at all, I'm just watching confused)I kinda laugh it off and is like dude I'm not touching you. And he walks back to me and I'm like dude lay down, so he lays down in his bed and I lay down in mines, and we turn off the light. The high isn't done though, I can't recall exactly when but our legs start moving uncontrollably like a drill in our bed, in circles(we both experienced the exact same thing here) and we can't stop them from moving. We smoked at about 5 and its around 8 now and after about idk a hour or 2 our legs stop moving and we're almost back to normal, but he gets up and lays back down and is like dude wtf did we just smoke. And he's like he don't know what just happen(hard to explain but it's like when he get up and lay back down he snaps back into himself) and he's like I have to go take a shower cause it's like he feels his blood rushing through his veins. And he's limping cause he said it was like his left leg was hurting or something and he eventually goes to work( he works the night shift)and we're fine the next day. But since that high I haven't been the same. Now for some reason if I hotbox with someone it's like the car shakes(like it's being pushed from the outside) and people say they hear screams when they smoke with me, yet I don't hear it. Also I have some wired reaction with small lights when I get high(like if we're in a dark car and someone turns on the car light), like it sets me off or something(this is what everyone else says, but I don't really feel it)can anyone tell me what's going on. Am I crazy, schizophrenic, or delusional or something. I love weed and would hate to have to stop smoking. Sorry this was so long. Please read it all and give me some feed back. (Also we were 16 and 19 if it matters)