The data you provided (weird rash on the chin one year ago, swollen lymph nodes in the armpits, vomiting, and night sweats) might be related to an infective disease. The disease might be related to an insect, for example, a tick, which is responsible for transmitting lyme disease or borreliosis. Lyme disease is associated with the characteristic “bull’s eye” erythema (which was not reported), but many other insect-vector infective diseases might cause the symptoms you reported.
Night sweats and “clouds” on the X-ray are characteristic for tuberculosis, but might be related to many other conditions, too. The white blood count (WBC)- 12.3 and 16.2 a few days later indicate the presence of infection, but are not high enough for more serious conditions.
The presence of MRSA abscesses additionally complicates the situation. MRSA stands for methicillin-resistant staphylococcus aureus which means that this type of bacteria is already resistant to certain of the most used antibiotics. If the bacteria spread out of the abscesses, then it might cause more serious infections, which might be related to certain of the symptoms you mentioned.
You might want to visit a specialist for tuberculosis for serologic tests which would confirm or rule out tuberculosis. Contacting a specialist in infective diseases might also be helpful. Providing the data that the symptoms actually started on your journey in a specific area might give the doctor a clue which insect might have transmitted the disease and which infection to search for.
DISCLAIMER:
"Ask a Doctor" questions are answered by certified physicians and other medical professionals who volunteer
their time on eHealth Forum.
For more information about experts participating in the "Ask a Doctor" Network, please visit our
medical experts page.
You may also visit our Infectious Diseases , for moderated patient to patient support and information.
The information provided on eHealth Forum is designed to improve, not replace, the relationship between a patient and his/her own physician.
Personal consultation(s) with a qualified medical professional is the proper means for diagnosing any medical condition.