What could be a cause of acute polyneuropathy that develops in 1-2 months? it seems like it only affected my sensory nerves. im kinda worried even though im getting an mri in the next month. it doesnt seem like guillain barre syndrome?

From the comments in your post, it is not feasible to be precise, BUT, will try to interpret. There are sensory variants of Guillain-Barre, and a host of sensory neuropathies associated with vitamin deficiency, diabetes, hereditary disorders, HIV, immunological conditions, and various medications and toxins. Central sensory loss can be seen with MS, syringomelia, etc. Neurology can uncover caus