Nate had a pretty bad cold about 6 weeks after being diagnosed with GBS.
He was in a convalescent hospital by then and having trouble breathing already frightened him, me and his nurse.
They gave him antibiotics, lots of cough syrup/expectorant and it took him about 2 weeks to get better but he was ok.
He also had a kidney infection about 5 mos after. It was Strep infection which can get pretty serious.
They gave him Streptomycin and he was ok within a week. He has Bladder Dysfunction, causing him to not be able to tell when he needs to empty.
It causes kidney backup.
The hospital started giving him Cranberry juice every day and I still do now.
It helps acidify the urine, cutting down on bacteria.
The illnesses he had did not seem to hinder his recovery or bring back any symptoms of GBS.
Trying to resume normal routines as much as can be will not only help you but your family as well. I know its sometimes hard but it will make things easier.