I feel I have a carotid dissection

[frustrated24]

Hi two weeks ago I had a worsening headache after playing some tennis.  I had intense pressure, and felt very drowsy and a bit confused.  I went to the ER and had a ct scan of the head which was "normal".  Next day felt a little better.  By the fourth day, the headache returned, along with intense deep pain of my neck.  This continued for two days.  By the night of that second day, I decided to go back to the ER but was dismissed. ( assumed anxiety)  So I went home and two hours later, I fell down my whole right arm went numb, the headache got much worse(It really felt like something burst, not exagerating) drowsy feeling and slight confusion, pain behind the right eye, and on the way back to a different ER, I could not stop twitching( big jerks of the right leg and left arm).  Upon registering, I could not sign my name and had trouble listening and answering questions.  I literally look back and feel like I was in a really scary bad nightmare.  Another ct scan of the head with contrast this time and again "normal".  then discharged and somehow fell asleep, and the next day felt better, but oddly I had blurry vision.  And trouble walking due to a lot of weakness.  My question: Is it possible that I suffered from a stroke and no one was able to diagnose me?  I know in order to diagnose a carotid dissection, more sensitve tests are needed.  I have been taking asprin daily now until I see a neurologist(one month from now!)  Do you think I will be ok until then?  I don't think the ER dept. is going to help me if something happens again to me.  I'm very scared.  I'm 24 years old and feel like because of my age, no one is taking me seriously.  Even though I know 100% there is something very serious wrong.  Please help.