Hi there. You have allot of symtoms! No wonder you are nervous! Dont be....we are a friendly bunch!
It does sound like many of your symtoms are neurological in nature; however knowing if this is MS related is hard to figure from descriptions. MS is very hard to diagnose- and the only way it can be done is to rule out everything else...alot of tests are in your future. The first one is the MRI. Make sure when you get it that they do both your brain and Cspine and with and without contrast....contrast is the dye they inject into your arm. By doing it this way, it will pick up any lesions which might be too small to pick up otherwise.
You really should pressure your GP to see a Neurologist...dont bother having your GP send you for the MRI, as he isnt speciliazed enough to know what to do with it...see a Neuro and specifically try to see one who specializes in MS. You can call the MS society for referrals or get one from your GP- but try to get the testing done sooner rather then later...what you are going thru doesnt sound like fun- and the appointments with MS specialists can take 4-6 months!
I know this doesnt help allot- but I hope knowing you have somewhere to turn to, helps some....welcome to the board and Im sorry you are going thru all this.