Searched to see if anyone asked if you've had COVID and found you volunteering that you had. This is very likely to be the cause of your problem.
You most probably haven't recovered fine, and I'd recommend discussing it with a doctor. I've been dealing with COVID aftereffects since early 2021. It's insidious and very, very real.
Edit: Until you've verified that post viral syndrome is not the cause of your problems, please IGNORE all the advice people are giving you to exercise. If you have post viral syndrome, your return to exercise needs to be very slow. Graded over months, not weeks. Overdo it and you'll regret it.
Further edit: In case it helps with googling, the symptom you may be experiencing is medically referred to as "brain fog" and the risk with over exercising is experiencing "post-exertional malaise".
You most probably haven't recovered fine, and I'd recommend discussing it with a doctor. I've been dealing with COVID aftereffects since early 2021. It's insidious and very, very real.
Edit: Until you've verified that post viral syndrome is not the cause of your problems, please IGNORE all the advice people are giving you to exercise. If you have post viral syndrome, your return to exercise needs to be very slow. Graded over months, not weeks. Overdo it and you'll regret it.
Further edit: In case it helps with googling, the symptom you may be experiencing is medically referred to as "brain fog" and the risk with over exercising is experiencing "post-exertional malaise".