Hello There.
I can understand your concern.
you need to undergo a few tests.
Complete Blood Count, Widal, Malarial Parasite, Dengue serology,
HIV, chest x-ray for TB and a other few tests.
if you have already got the tests done, kindly repost the question with all the reports attached so that we can look at them and give you a better opinion.
best regards,
Dr. Anil kumar jain.