I had it three time unvaxxed. Wuhan strain and Delta were unpleasant with the classic symptoms but mild. The last time I just felt tired and achy for a couple of days, no other symptoms. Vaxxed friends are getting ill repeatedly and for longer. I worry for them. If I have one regret of the last 2 years, it's that, although I shared plenty of information, I didn't try to dissuade them. I would like to know if OAS wanes with time if they stop getting boosted.