Hi guys, I'm a 21 y/o woman and should also clarify I suffer with extreme anxiety disorder and hypocondria 

for five months I had ammonia smelling urine, the doctors kept telling me I was just dehydrated and I had loads of blood work (kidney and liver function tests) chest X-ray etc, recently they actually found I had a UTI infection caused by bacterial ecoli (but I had no other sympthoms other than the urine) anyways, I was prescribed antibiotics called macrodantin 50mg 4 times daily for 7 days. Since I started taking them the lymph nodes in my neck have become sore and tender, they have not swollen I'm guessing as they are feeling the size of a grain of rice alittle bigger in width, and can be moved around under the skin, what's worrying me is the pain in my right shoulder blade towards the back, it's so sore and when I look it up it says it's malignancy? Also I thought mabye it was my body's reaction to the antibiotics clearing the infection as it stoped my ammonia in the urine, but apparently UTIS don't cause lymph swelling and only bacterial infections near the lymph nodes swell, I'm really scared that it could be something serious (I never had this before) and the pain is not really really bad but noticeable and stingy 

if someone could help just to give me abit of peace of mind or even some information I would really really appreciate it. Thank you x