I am Dr Ravinder Sharma ENT surgeon
On the basis of the information provided it appears to be CSF leak. The site of leak may be
1. In nose in the region of cribriform plate or sphenoid
2. in the ear (roof of middle ear or promontory - medial wall of middle ear)
You will require a CT cisternography or MRI
to localize the site of leak.
I hope this answers your concern. Feel free to contact me if you require more information about it