Hi,
First of all, the
fever as well as the loss of weight, and it could also be said that the vomit attached to these mentioned signs/symptoms are non-specific. By saying nonspecific symptoms, what we mean is that a wide variety of diseases can cause them.
To reach an accurate diagnosis is very important physical assessment, as well as obtain certain details about these symptoms, for example: time of initial appearance of fever, duration, relieved with taking antipyretics or not, amount of weight lost in the period of time, frequency of
vomiting, color, projectile or not, and exhaustively engaging other symptoms to rule out certain pathologies.
All this is important because depending on certain characteristics, your treating physician will be guided on the studies to request you. So, my friend, the most advisable thing is to assist a doctor (and that is that doctor, the one who follows up) to do a good anamnesis (questioning about symptoms), physical examination, and depending on that the studies that you consider necessary for reach a diagnosis and treatment.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Luis Alberto Urdaneta Arenas,
General & Family Physician