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Thanks for writing in.
It is will help to know since when do you have these symptoms. There can be many causes of tingling and pressure in the temple like sinusitis apart from CSF leak.
CSF leak can occur due to trauma, Lumbar puncture, epidural injections, excessive weight lifting and spontaneous leakage from spinal nerve roots. It can occur through the nose or the ear.
http://emedicine.medscape.com/article/338989-overview
The diagnosis depends upon examination of fluid for beta 2 transferring which is present in the CSF and CT cisternography.