Hello and welcome to HCM
I have read your mail in detail. Blood transfusion
do not experience any side effects, but people can have reactions to any blood component and can produce fever
, allergic reactions with chills
and shortness of breath
etc. Fever with chills and itching is the most common side effect of blood transfusions, accounting for more than 90 percent of all transfusion complications. It can be uncomfortable but is not usually dangerous. Certain drugs reduces the fever and other symptoms.
Consult your doctor for that and these symptoms usually reduces in 3-4 days. So don't worry and clear your doubts with treating doctor.