everything started last march when I felt so weak that i had to call 911...they told me I was ok...but in a week i started to fell numb, bad headache,internal vibration, so i went to the ER i had 2 ct scan in my brain and a MRI,all negative...i was really scarried...then i went away for 1 month and all these symptoms disappeared....the summer was ok until last september I start to fell numb again,my muscles were very tense,my neck and upper body was in so much pain...I had tension headache, stomach problem,nausea,cold hands old the time, chest pain,palpitation, vibration...i coudn't sleep anymore...it's 3 months that I feel like this almost everyday..I had all the blood test done,plu another mri last sunday,a barium enema,a ecg,intollerance tests etc etc..all negative...I think 5 doctors told me that nothing wrong with me...and that is just anxiety...so I feel better for few days and then it's all back again...yesterday I saw this specialist from Internal medicine...we spoke for long time and he told me that is very commun for women of my age to feel like this,i'm 27, i just have to live with this symptoms for few year, today I'm less worried!!!..I went to the gym, i tought about positive thing...usually i'm always thinking about diseases,cancer, heart attack, or brain tumor...I'm in control of these symptoms...i want to try to beat them, i have to understand that I don't have anything..it's all in my mind....plus I see a chiropractor once at week....he 's helping with my neck and back stiffness, the doctor said that if he is helping me it's ok to see him!!!..I hope this message helps all the people that don't know what's wrong with them!!!I always tought I was a very happy person..but if i look back into my life I can see way now I'm like this!!!