Doctor, Can you tell me the difference between "swollen" lymph nodes and "aching" lymph nodes? I am simply curious as to what those things mean from a bodily functioning standpoint. I posted on here a month ago about a "high risk" exposure I had, although I do not know if he is hiv positive or not. I did get some kind of uti about 3 weeks after this unprotected insertive anal exposure which took two different antibiotic runs to knock out, the second was a 30 day antibiotic. I tested hiv negative with a standard elisa after one month and again after 10 weeks. I had all kinds of symptoms settle in on me at about week 5 including muscle pains, loss of apetite, sweats, headaches, some red dots on my skin, a chronic cough, and aching lymph nodes. No fever ever. I still have all of these symptoms and it has been 4 months since the episode now and 3 months since these symptoms started. Some days are better than others. My doctor tested everything he could think of...lyme disease, mono, blood protiens, blood count, hepetitis, syphlis, herpes... everything has come back normal except herpes one..which he said would'nt explain my symptoms and most people have it. I don't know what to do at this point, and I don't know how much to worry about hiv or some other std... and when I should get tested again. Other people I work with have had flu bugs with all these symptoms recently, but they are recovering...mine just keep on hanging there. I suppose maybe it could be in my system from another std or something the antibiotics opened me up to...but how long can this stupid thing go? I don't know what to do next. I would like to know a little about why your lymph nodes swell up, and what it means if they ache but no swelling. My doctor said twice that they are not swollen. But they all ache on and off...under my ears, on my shoulders, under my arms and in my groin. Thanks