What is the risk of gullian barr from a flu shot? its been 24 hours since my shot and i barely have any symptoms

Less than 0.0%: The answer is none, in real life terms. The CDC reports that our rate for GB syndrome in the US is about 80 to 160 cases each week (maybe from infections), regardless of vaccinations. The CDC says the possible increased risk of GBS following flu vaccination is small, on the order of one to two additional GBS cases per million doses of flu vaccine administered. That means no need to worry about it.