Can lymph nodes swell up before you’re symptomatically ill?

I woke up this morning with a swollen painful lymph node in my left groin (larger than a pea, smaller than a marble) and my left neck nodes are swollen but not painful. I’m not currently feel any cold/flu symptoms but was with a friend yesterday who did have a cold. Is it likely I do have a cold/flu but am just... show more I woke up this morning with a swollen painful lymph node in my left groin (larger than a pea, smaller than a marble) and my left neck nodes are swollen but not painful.

I’m not currently feel any cold/flu symptoms but was with a friend yesterday who did have a cold.

Is it likely I do have a cold/flu but am just not symptomatic of it yet?
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