Hi.
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain 
sore throat, head cold, headache, cough and runny eyes and nose are all due to viral infection that can be due to upper 
respiratory tract infection or 
common cold or can be due to 
Influenza or flu..
I would suggest you to consult a General Physician and get evaluated and he can advise yo supportive treatment like decongestants like 
Phenylephrine and mucolytics like ambroxol..
You can also be advised anti inflammatory painkiller like Ibuprfen..
Warm saline gargles, steam inhalations and using a cool mist humidifier can help..
Chew a Vitamin C pellet daily..
Avoid spicy and chilled foods.
Sip on warm water and other warm fluids like soups, broath etc..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora..