I;ve noticed that the eyelashes on my right eye lid are not as sensitive as the lashes on my left eye lid. Should I be worried?

Eyelash sensitivity. I'd start with a nightly warm wet compress of the lids on both sides, and maybe some gentle cleaning of the lashes with a few drops of diluted baby shampoo to see if that helps. If not, or if there is a bump or ulcer, or bleeding or lash loss that is new, you should see an ophthalmologist for further evaluation.