So I'm on the antivirals since Tuesday and I'm hoping they start to work soon. I tested positive on Saturday and have been monitoring my o2 levels as instructed. When I'm lay down they sit between 96-98 which is great. But they've been getting progressively worse if I move around, even if I need to nip to the loo. It leaves me really breathless with chest pain. Do you think I need to mention it to anyone?