Hi julie,
You are not crazy
There are numerous conditions/illnesses that can cause symptoms similar to MS. Bloodwork can rule out/in many of those conditions/illnesses. Neurologists tend to order a large amount (10 to 12 vials) of blood work to look for other conditions/illnesses.
Anxiety can cause neurological type symptoms, so if you deal with anxiety it is best to get that under control to rule it out as a possible cause of symptoms.
It's always a good idea when MS is being considered to get a MRI of the Cervical Spinal Cord (neck).