I woke up this morning and was washing my hair and felt a knot like bump on the bottom left side of the back of my head. I have been around a lot of sick people at work and then had sick kids last week. I rarely get sick (haven t been in 4 years).I ve been nervous all day, and with any medical symptoms research done online, I ve made myself a nervous wreck. I ve seen everything from a swollen lymph node from an infection or head cold to a tumor to cancer to HIV to cyst, etc.My neck is a little stiff and a bit foggy, I ve a bit tired, but otherwise feel fine. I think I ve got myself stressed to not feeling well more so than actually really not feeling well.Should I get in or see if a head cold develops? I m scared a bit, but not really - as I tend to think it s more a swollen lymph node. I swear it wasn t there Friday and not, as of Sunday morning, I noticed it. If it s a swollen lymph node, how long do they last and am I contagious right now?