pleghm in my throat

[Babyray]

awesome day!if you dont mind i just need your medicational advice. i had a pleghm in my trought and lot of saliva when i want to get it out it is like a thick yellow white mucus and there a saliva and also experiencing headache ,light head and feeling having a colds but no one get out in my nose onetime theres a like fluid run out my nose and it is color yellowish and just like a cut in my trought i also experiencing tonsilitis.by the way i experiencing this for almost six months often.on my first 2month i only experience of heaviness and chest pain and they gave me omeprasole so the pain is out now i also undergo xray,ecg,and pleghm test and it is all negative after i take omeprazole but after that i experiencing headache and that pleghm in my trought,tonsilitis,feeling like having an astma,sore trought,my jaw is aching then i change into antacid tehen they gone and the only left is this feeling of having sinusitis ,pleghm stuck in my trought,tonsilitis,light head,and also my eyes is aching to.can you help me to find out what it is and what can i do about it please help ...ty i also had a weight loss