Hello from JustAnswer.
No, there is no need to be rechecked at this point.
The vast majority of sudden onset of painful enlarged lymph nodes is because of a reaction to germs entering the body, even to relatively simple infection, such as minor viral infections of the throat.
When there is a reactive enlargement of the lymph nodes, it will sometimes resolve quickly, but sometimes more slowly, taking longer to resolve than the original infection. And in some cases it may take a month or two.
For this lymph node to be reduced very much in seize after 6 days, that would be strong support that this is a reactive lymph node, and it will almost certainly continue to resolve without needing any further medical care.
If I can provide any additional information, please let me know.
It is very good that you have clear mammogram and ultrasound. But even if there had not been any recent imaging tests of the breasts, the lymph node symptoms that you describe would not be worrisome and it will almost certainly continue to resolve, as I noted above, so there is no need for you to be seen again or consider any other evaluation.
Even in this location, the pattern of the enlargement of the lymph node that you describe is typical for a reaction and will almost certainly continue to resolve.
These labs are not worrisome. The GGT is very non-specific, and when there is only an elevation in GGT with no other liver blood test abnormalities or findings on exam, there typically is no liver disease causing the GGT elevation.