It comes in waves it seems. Every couple weeks I have nasty three day hangover feelings and the other days it's more of a nuisance. But it's always there. Neurologist suggested we up our B2 and potassium game. Doing magnesium at night and trying lions mane mushroom powder to help open the neural pathways. Hasn't been long enough to really see if it's having a good effect but, let's hope! Currently 5 months post-recovery.