I've had a terrible post-nasal drip for the last 2 weeks. I started to get headaches, and I got a dizzy spell this morning (good thing I was sitting down). Is that all connected? I had taken Claritin-D, but it made me sleepy.
It is possible that all of these symptoms are related, depending on the source of the post-nasal drip. Potential sources include air-borne allergies, upper respiratory infections, influenza, acute or chronic sinusitis, or, less likely, a reaction to a toxic substance in your environment. If you have had this condition for two weeks and it is progressing to the point of having headaches and dizziness, I would advise you to check in with your primary care provider.
Sinusitis is particularly problematic and can become chronic if it is not treated or is treated incorrectly. Most cases of acute sinusitis are caused by failure of the normal mucus transport system or decreased sinus ventilation. The four paranasal sinuses of your face are connected by small openings called ostia. If they become obstructed or inflamed (leading to swelling and then obstruction) the sinuses do not drain properly, and the backed up secretions are an excellent media for a bacterial (or, less often, viral or fungal) infection. The pressure, pain, and inflammation in the sinuses can lead to headache and dizziness, but again this is only conjecture. A health care professional can do the necessary testing and diagnostic imaging, if necessary, to determine what the problem is in your situation.
Here is a link that might be useful: Acute Sinusitis
It's possible that you have an infection that's bad enough to affect your ears. This would upset your balance. It's time to see your doctor. Claritin-D will not help to clear an infection. It's just for keeping down allergy problems. You may need an antibiotic or other medication. Ear infections can get to be unpleasant.
Quercetin with vitamin C helps the sinuses. I use it for my allergies. I get the Natrol brand.
read what swanior said..