No one on here can confirm whether your symptoms are related to a CSF leak. if you are concerned, you need to contact your surgeon. He or she will evaluate you and probably order a scan. A leak can be seen in the scan.
My surgery was in Sept. 2018. By November 2018, I noticed dripping from the left nostril (tumor was on the left side) whenever I exerted myself or when ever my head was tilted downward---for example, vacuuming, washing the dishes, leaning over while cleaning, etc. One tell tale sign is dripping from one nostril when your head is tilted forward. I ended up being admitted through the ER because at the time i was being evaluated by the surgeon, I also had a bad headache and was feeling very off. During the appointment, I showed signs of a leak (dripping from one nostril when he asked me to bend my head over) and the scan showed a leak. He wanted me admitted ASAP because he was concerned about the headache and the chance of it possibly being the start of meningitis (I live far away from the hospital--almost a 2 hour drive--and that's too long to wait if meningitis were to set in during that night). I ended up having CSF repair surgery a day after being admitted.
in short, don't rely on us. if you have concerns about a leak, call your surgeon.