What Causes Persistent Head Pressure And Clear Nasal Drainage?

i have been having head pressure since october. i had a CT scan of my brain & sinuses in December, which showed no problems. Saw an ENT in Janurary, who said no problems. A visit with a Neurologist who specializes in headaches in February, who said tension headaches with ocassional low-level migraine symptoms. I have kept in correspondence with him, about my concerns, the latest being TMJD, which he agreed could be a cause of the head pressure. I was also diagnosed in December 2015 as borderline fibromyalgia. Had an appointment yesterday with an Orthodontist, got molds made to have orthodics made to begin treatment of the TMJD. Today though, twice, while bending over I had clear liquid come out of my right nostril. I looked it up online, and found is likely a CSF leak, as well as ICP?! I should mention i had brain surgery, a subdural hematoma removed from my right frontal lobe, in 1993 (16 years old)...which causes me a bit more concern. Is it possible I may have a CSF leak coming from where my skull was wired back together?! I ve read several articles online about this tonight, and it seems that while it s important to get checked out, that it s not likely an emergency. I definitely dont want to head to the hospital, but I also want to get a professional opinion asap. I sent a non-urgent message to my neurologist, but he wont get it until at least tomorrow. Thanks!