more help?

now I am getting internal tremors and creepy crawly feeling inside which makes me really restless.  I am having trouble focusing my eyes the pupils stay to big.  I am almost fainting all the time my neck is painful and stiff my head has a ton of pressure and everything I look at i have a hard time focusing,  Its like my head is either really heavy or really light with tons of pressure I am terribly weak legs and arms feel like jello and I cant bend over at all without going up soooo slowly its sad and then I have to grab my neck and head and just go slowly and any head movement makes me not feel great very lightheaded and my pulse goes up & i get out of breath.  I am going down hill and dont know what to do.