I am 21 years old and a health female. Recently I've started to have major anxiety about my health. My wisdom teeth are giving me problems and my check is swollen as well as my sternocleidomastoid muscle on the right side where my impacted tooth is. A couple days ago I also noticed a pea sized lymph node on the posterior cervical. It doesn't hurt at all and unless I tilt my head to the side and feel it or dig into my neck to feel it when my neck is straight I don't feel it. I am not sure if I should worry. I don't know if many it's from my wisdom tooth or even from a cold I had about a week and a half ago. I don't know if I've had this and now since I'm having health anxiety and looking for any possible thing now I'm finding problems.