What Could Chest Discomfort And Vision Problem After Marijuana Intake Indicate?

Hi , i haven t been feeling myself for like about a month. This started when i took brownie with marijuana. I ate about half of it. I went walking to 7/12 right after and cane back. I ate hot cheetos with cheese and chili. I also drank Arizona. After that i masturbated and felt okay. Right after i started feeling a fast heartbeat and got scared. I immediately went to urgent care and they told me to go home and rest. I went to the doctor the next day again and said i probably have anxiety but because i disnt mention the brownie part. 2 weeks later i started getting this heavy crushing pain in my chest and went to the ER. The doctor said i might be nervous about college and need to workout. It kinda calmed down even though i didnt do any physical avtivity. The only thing he told me was that if i had pain in my stomache of any kind to go back. Next day i felt that exact pain i made an appointment with my doctor and she said to take tylenol and it night be a muscle. I took it and i felt weak and tired and dizzy. I called the nurse advisor and was advised to go to the ER. I didn t go as i slept it off and felt good. Last thursday i got home from school and felt very weak and sleepy. I also got that chest pain again and got scared. The chest pain continued but i felt with energy again. On sunday i almost went to the ER again but it seems like it kinda goes away if im busy. But yesterday i started feeling off balance, dizzy, light headed and as if my eye vision was changing. Again, chest pain is still there but now its a pinching pain. I called nurse advisor and was advised to go to ER or call again if started sweating or shaking. I slept it off and here today i feel even more lost in reality and my eyes feel heavy and dizzy. Im scared and dont know what to feel.