please give me your advice

So about 2 years ago I went to see a neurologist because my legs kept having this horrible pain i felt as if the blood wasn't flowing properly in my legs and they would tingle.  The neurologsit had me get an MRI because he thought that I may have MS, the MRI showed no lessions at that time.  In June of 2010 I went to see a new family doctor at this time I was dealing with urinary urgentcy, IBS, pains in my legs and arms.  The doctor told me that he believed that I had Fibromyalgia, he also sent me to see a rheumatologist (sp) to make sure that it was not rheumatoid arthritis.  Well since June, I have found myself waking up in the middle of the night because of legs just suddenly kicking really hard for no apparent reason.  I have noticed when at work I feel like either my head or neck is trying to jerk to my right side.  I have also had increases in pains in my hands and arms.  I am right handed and some days i'm in so much pain that I can't grab the steering wheel.  I wake up the mornings and my hands feel to weak to open or close them.  I also woke up in the middle of the night to use the bathroom and I found that I could not lift myself up with my arms.   I have had slurred speech and memory loss.  I can't remember what I did this past week and at work I have difficulty remembering if I have completed specific tasks.  When talking with people I slurr my words, can't find the right words, or just completely forget what I am talking about midsentence.  I went to see a neurologist in Jan about the memory loss, and I had to take a lot of tests in a room, with reading and spelling and memorizing words.  I passed all of the tests and the neurologists said that he thought it was due to anxiety.  Yes i suffer from general anxiety disorder, but i had never experienced these problems until the past few months.  I have also noticed that I get dizzy and have the sense that I am moving when I am sitting still.  I have fallen from my chair at work a few times and walked into many walls, as crazy as that sounds.  I feel as though I have more space and I am further away from the wall then I am, and walking through a doorway I will hit the wall with a couple inches of my body.  My vision has gotten worse over the past year, first I thought it was due to my contact use.  But I don't believe that contacts can make your vision go soooo bad so fast.  Anyone with experience with this please tell me if you think that I should go see another neurologist to see if it iss MS or if this seems more like the symptoms of Fibro.  I'm just tired of being sick and not knowing what is really going on with my body.  Thanks

Thanks, it is just so frustrating not knowing what is going on.  I don't want to sit around until my vision is horrible and I don't have any balance to see anyone.  The twitching just started recently over the past couple of months.  It didn't bother me as much at first but now it wakes me up out of my sleep.  Another reason that I thought i could be MS is because I am so weak.  I don't exercise very often, but I know it's not just because of that.  I work at a vet and we have to hold animals for blood draws and vaccines.  I can only hold an animal for about 1-2 mins and then I feel like my arms are going to give out or my legs will fail, from the way that I am sitting.  I'm on a muscle relaxer that's supposed to help with my pain, but all of my symptoms seem to be getting worse not better.  I have an appt next week with a neurologist so hopefully they can help me.