That's a hard call. Depends on your symptoms I think. I've gone to session with a cough, but I was a smoker, so I always had a cough. I go to my sessions if I'm nauseous ONLY if I know that I'm under extreme anxiety as well. I think you just learn to recognize anxiety symptoms from cold/flu/Covid symptoms. If you have a fever, definitely don't go. Fevers usually indicate your body is fighting off an infection.

It's just better to be safe than sorry.