Hello! I'm 25 years old, male. About a month ago I've lost my sense of smell and it came back after 2,5 weeks so I assumed it was due to COVID. However since a week I've been feeling a weird ash/cigarette taste in the back of my throat all the time. Honestly I don't have any other symptoms and all the time I feel like I was just smoking a cigarette and there's an aftertaste in my mouth but I don't smoke. Could it be COVID related? I'm worried about a brain tumor because I know it can cause smell and taste hallucinations :(