My Thursday was very scary!

So last night I was with my boyfriend and his roommate and we were just watching a movie and all of a sudden my head started hurting and my eyes got really sensitive to the light. My boyfriend's roommmate reduced the lighting and gave me sunglasses wich helped. My boyfriend also gave me a Benadryl 800 I believe it was and my headache went away. Well today our buddy came over and usually I joke around with him and say stuff like "What's up fucker?" and when he came over I felt very anti social and I didn't even say hi to him! I am usually talkative and I just sat at the table and felt what I call "weird" and was very antisocial and spacing out. Well when my boyfriend, his roommate, and I were on our way to his sister's house, my eyes rolled in the back of my head and my vision got very blurry and everything felt like it was shaking and I coyldn't stop staring at one thing (which was the ceiling of the car). I was responsive but couldn't see for shit. I was scared as all hell because NOTHING like this has ever happened to me before!! At first I thought it was because I didn't take my meds (I was scared and blaming it on my meds) so I kept saying "Take me back to my mom's house" to my boyfriend. It wasnt my meds there is no way it could be. So we get to my moms and I take my meds then I laid down on the couch for probably 2-3 hours and took a couple naps and when I woke up 2-3 hours later I was fine. My vision was fine and my eyes werent in the back of my head and I could focus on everything just not 1 thing and become unreallike. I am still fine and it is 12:08am and I am feeling "weird" but not antisocial.  I have looked up a LOT about this.... My boyfriend and I are also trying for a lil one. My fertile days and ovulation day was last week and we had baby making time on ALL fertile days and on my ovulation day. Today (Thursday) I also had morning sickness. Possible pregnancy symptoms or something worse?? This would be my first pregnancy by the way and I am a young adult. Please let me know what you think it could be!!! Im very scared and going to see a neurologist and my gynecologist hopefully very soon and IF this happens again before those times i AM going to the ER. Let me know what you think!!