I Have Several Symptoms. I Have Numbness In My Finger

I have several symptoms. I have numbness in my finger that never leaves. random numbness every where else. I have headaches, several per day. Most don't last long. I have stiff muscles and cramping. I twitch or shake a lot. I am often woke up by my arms or legs moving on their own. I have numbness in my face on and off, blurred vision and some twitching in my eye. I trip on a regular basis and I fell once. I have also had some brain fog where I cannot find the words to say something. I find myself not talking because I don't want to trip up on the words. I went to a Neurology clinic and my MRIs were good, I did have some non-specific white brain matter spots. The doctor said all is good. They missed my vein twice while taking blood so they put the IV in my hand. after the dye was injected and I was done with my MRI test, I notice my hand where they injected the dye was swollen. It was raised up 3/8" and it stayed swollen for a couple days. Is it possible the dye did not go in my vein causing the MRI to not show anything? My doctor has set me up for a sleep study. The doctor at the neurology clinic said I was fine but the numbness would not go away. If I am fine why would the numbness stay, how could she come to that conclusion if she says she does not see anything wrong? What is my next step, It is getting hard to cover my symptoms at work.

Thanks, MO