Is It Normal For Pre Cum To Be White And Sticky?

when i masturbate, the 'pre-cum' is meant to be clear right? i mean, before i ejaculate? in the past few weeks, before i ejaculate, the liquid is kinda of clear with white in it too an it seems stickier than normal. oi told my gp about it and she said that it is normal. but i havent seen it on anyone before. is it normal?