I caught COVID back in January, but have seemingly missed any long-term effects. I did, however, have a coworker that lost her sense of smell for at least 3 months following her recovery from COVID. It's possible that it was longer, but she left to find another job and I never got to follow up on that.
From most of the accounts I've read, the lost sense of smell should be temporary. It's pretty rare for it to not return at all, since even the extreme cases mostly show a partial loss of smell. Other symptoms like brain fog and memory problems are still being researched, and since I've last looked over the studies, doesn't seem to have any definitive conclusions other than acknowledging its existence. There aren't really any good controls in the research, so it's hard to say to what extent those problems will affect you
Sorry that you're going through these symptoms, because these are the same things that haunted me while I was battling the virus and figuring out what my outlook would be. It's not much of a consolation, but you're definitely far from alone. The science is fairly young into this research, so there's still hope for treatment options regarding your ailments. It's too early to say whether or not these side-effects are permanent.
