I've had this lump I'd say for about a week and a half. I'm not sick, I feel healthy. I did come across mold within the same week but I cleaned it right off. I don't have any night sweats or trouble swallowing not sleeping. I've read only of the possibility and I read that it could be cancer. I've convinced myself that it's cancer and I've been worried and my anxiety starts kicking in. I'm very frightened on what the lump is.