About three months ago I hit a pothole and my vision got very blurry. Since then my vision has stayed blurry, my left side of my face, neck , and sometimes my left arm has been tingling. I blackout, get light headed and throw up. My lower back and lips get numb or tingling at times. I have shooting pains all over my body. My hair is thining. The other day I couldnt move my arms very well. I have have balance issues at times. My thought process has been very slow as well. I am also very tired even with good sleep. I am normally a very healthy 26 year old. I work out daily. My Dr. Has run all the test and says I have nothing wrong with me except stress. I do not agree with him. What could all of this mean. Is it all in my head.