Thanks for your query
Did you have such episodes of headache before ? If yes then how frequent are those episodes ? And what are the associated symptoms?
Are you having fever too ?If yes then how much ?
You say you are having chest tightness
while coughing and sore throat
along with the headache.May be you are having respiratory tract
and chest infection
along with sinusitis
.A clinical examination along with throat swab culture sensitivity,blood investigations, Chest X Ray and CT Scan of the sinuses will confirm the diagnosis.
Your blood pressure is to be checked and an ECG is to be done.
If its diagnosed as headache due to sinusitis then you will need to take antibiotics[eg CoAmoxiclav],Analgesic&Antiinflammatory [eg Paracetamol],Steam inhalation ,Antiallergy[Levocetrizine]
If its diagnosed as migraine then you will need medications for that.
Dont self medicate.Get a checkup done by your physician and follow his advice.
Hope this helps.