I had extensive sinus surgery 3 months ago. Since the surgery, I've had a clear fluid dripping from my right nostril, whenever I bend over for a time. My family practice doctor was concerned that it's a CSF leak and sent me to have a CAT scan immediately. That came out fine. ENT who did the surgery took a sample of the fluid and sent it off to the lab. The lab failed to process the sample, lost it for a time and finally did process it and it came out negative. Meanwhile, I've been having headaches, fever, neck pain and seem to sleep all the time, which is very very unusual for me. Yes, my nose is still dripping this watery stuff. Any thoughts?