Thank you for stating your concern
From the description you might be catching a cold or flu, since you where exposed to a change in temperature, general weakness and mild symptoms like headaches
are common and also the fever
, since you don't have access to medication yet and symptoms are just starting to develop, you can help your immune system by resting, lots of vitamin c
, hot beverages and protecting yourself from cold air currents if you can start taking advil
, but if the symptoms persist or new ones appear, tell your parents and if needed schedule a visit to your doctor.
Feel free to ask if you have any more questions