Csf or not should I worry?

i was in the bath and dunked my head and i felt water go up my nose and bubbles came out i then came out and got out and when i leaned foward liquid clear poured out and after a few seconds stopped and later another drop or two came out when i leaned over but it won't do it anymore i read something is this csf or just water coming out my nose i never had this happen before what should i do

Csf or not should I worry?
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