Before I came down with SFN, I had a very bad bought of bronchitis. I was very ill for about a month with the worst cough I ever had. As the cough was finally resolving,i started to experience the first symptoms of PN.

Simultaneous to that but, I had some stomach complaints as well, it wasn't until significantly after the Pn came on bodywide, that I saw a gastro who did an endoscopy and diagnosed me with a a pretty significant case of H.Pylori infection in my gut.

My illness has been diagnosed by a SF specialist as post infectious autoimmune SFN due to a process of molecular mimicry. It's more or less a GBS variant. There is ample information online linking GBS to helicobacter infection, especially the axonal form which is different to demylenation.

Though the docs beleive that mine was a reult of the brochitis.

I had bronchitis this past february again, and I had another attack of it, though much milder. After each attack, I seem to feel better and find more resolution.