Oh my gosh. This happens to me on the regular (I have really long lashes so I am guessing they get tangled within each other) and it drives me bonkers.
I haven’t come across a solution to this. When it does happen I just will comb through them (I know it sounds silly and I actually just giggled while writing this haha) but that is the only thing that helps to get them unstuck so to say and/or not bother me. Sometimes I will do it with my finger but I am always frightened to get something in my eye.