Pressure in forehead upon standing, clear nasal congestion, a lot of post nasal drip. head feels wobbly. is this common for a sinus problem?

Yes: Yes what you are describing are some typical symptoms of sinusitis. If this is been ongoing for a long time he can see your physician for treatments you may or may not also need antibiotics for an extended period of time. This would be a good place to start for the workup and treatment and if you still experience these symptoms he may need more work up to rule out other conditions.

Yes: You are describing symptoms that may be associated with sinusitis. Pressure in the forehead, clear nasal drainage and a lot of post nasal drip are certainly compatible with a viral rhino-sinusitis. See an ENT doctor for a specific diagnosis and treatment. If symptoms last for more than 10 days, an appropriate antibiotic and steroids should be considered.

Yes: Although usually the pressure in the head thing is worse with bending over, as in from standing position, bending over at the waist and touching your feet or the floor. To relieve this, start with an otc antihistamine of your choice (claritin, etc) with a decongestant (if no hi blood pressure) and follow up with your dr. If no better after a few days. If needed, your dr. Can rx nasal steroids.