Here are some...
Your profile indicates you are extremely health-conscious, especially concerning possible UTI.
Now, you worry about palpable small cervical lymph nodes, which are nothing uncommon in some but not clinically significant. At least, all tests have turned out to be (-). Now, where will you head for? I feel learning some on life reality may help; to articles in http://formefirst.com/onLifeBasics.html.