I feel kinda distant from my old self

I am a light weight when it comes to alcohol and on march 27, 2008, i was over my cousins and we played some drinking games and i drank a 40 oz of budlight and then a little bit of malt liquor. Then i threw up because i drank too fast. Then we didnt have any weed so we scraped a bowl and lit up the resin of mids. I probably took about two- three hits from this. The next day i felt really weird driving home and i got scared that i did something to myself that i will never be able to get back to my old self again. I had only smoked marijuana ocassionally for 6 months probably less than 1 a month if that and probably a total of 10-15 times. Ever since i havent felt the same as i used to and i am scared crapless that i messed myself up for good. I didnt go to the doctor until a month later and he ran blood tests and said everything was fine. Then he even did a mri of my brain and it was normal. I feel kinda distant from my old self. My memory has changed a little and i have to ask people to repeat themselves. I also look different visually at things like kinda like unfocused look. My brother has anxiety but i have never had it before. I do not feel anxious ever. Also the doctor gave me lexapro to test out and i just started taking that a week ago but i dont feel a whole lot of change. I was perfectly fine before all of this. I also feel this weird headpressure, it used to be right around my temples but then it changed to my right side of my head and on my crown of my head and my right ear also feels weird. I dont sound the same to myself when i talk. Before taking lexapro i used to cry alot because of this, but that has stopped. My right arm also doesnt feel like its right. My body doesnt seem to be lined up straight. I dunno. Its been two months now and im going to the psyciatrist on wednesday to see what he thinks. My eyes have gotten better but i still dont think it is my original vision before all of this. I went to the eye doctor even and he said i was fine. My cousin and friend who also drank and smoke didnt feel anything unusual so i dont think it was laced. Also since then ive had weird visual disturbances like i can tell im here but it doesnt feel like it totally. I was also on a truck deliverying three saturdays ago and my eyes went unfocused and the world was closing in on me. It kinda felt like it was a dream/box and couldnt escape. My vision would change and everything looked kinda funny. Today i was in a furniture store and home depot and stuff doesnt look the same and i dont feel the same. I cant go on like this, i need it to change. Its almost like i got stuck in the last step of marijuana high before reality clicks in. Like im not high anymore or anything but it still feels weird. I cant tell time for c**p now anymore, i cant tell if an hours gone by or two. Will this go away? I was perfectly fine before all this.