Yellow tips

i got yellow tips on my leaves what does it mean? its only the very tip of it too?????????

Need WAY more info to help you. Pictures say a thousand words.

I had some yellow tips on lower leaves turned the fan speed down and they went away, I call it wind burn but everyone else I've talked to insist that's not possible.

Thanks guys they have started to go away i think it was that the lights were a lil too close to the plant tips.

hello everybody im in a jiff here. misinformed i cut all the fan leaves (sun leaves) on my plant 1 month before harvest and now my plant is in shock. A lot of the leaves around the buds are dying, but some are still nice and green. i want to know how i can nurture my plant back to health and if there is anything that might boost it up to make it grow more fan leaves???
Please help i dont want my baby to die.