I got long covid and had the same symptoms: depression, anxiety, tinnitus, fever, brain fog, dizziness, plus partial pneumonia. It was a shitshow and I thought that I was going to die. The anxiety I’m still fighting, but it has taken over two years to reclaim some peace.
I didn’t take the jab and am glad I didn’t.
Try some L-theanine for the anxiety. It’s an amino acid. Combine it with GABA for sleep.