Hi,
You could be having sinusitis or rhinitis. Do you have associated symptoms of cough, wheeze, breathlessness, post nasal drip etc?
You should try steam inhalation, saline nasal drops and oral antihistamine medications for your complaints and see if it helps with the symptoms.
You should see your doctor and get a clinical examination for a diagnosis and to evaluate if any investigations are required including blood tests, chest xray and CT scan of the sinuses.
Are you allergic to any specific substances or have had allergic reactions in the past?
You could read the following link -
http://en.wikipedia.org/wiki/Sinusitis
Let us now about how you are doing and if you have any other doubts.
Regards.
But I thought with sinusitis you would have a lot of nasal drip, etc. I will ask the doctor about it.
I have had the symptoms you're describing. I do not know if you have the same thing that I do, but I have sinusitis. It doesn't always show up on an MRI. My doctor prescribed antihistamines and anti-inflammatory drugs.
Just checking again. Does anyone have this symptom? Its worse when I am lying down.