I've had plenty of swollen nodes and never a problem. I went to the doctor with them a few years back, and they said yep, they're swollen, but all my tests were fine. But they never would go down. Then I read that even palpating them once a day would keep them swollen, so I kept my hands off of them for a week, and sure enough, they went down. There's one that's remained a bit bigger and kind of hard, but in all this time there's never been an issue with him and all my others are perfectly normal now.