when you say you have a bug crawling, do you mean you feel something in the eyes? How long has this been an issue? what have you tried?
the eyelids are notoriously inaccurate when it comes to feeling and sensation location. Sometimes, even a mild dry eye can feel like there is something in the eyelid or stuck under the eyelid. My suggestion is to try a viscous (oily) artificial tear such as Soother XP or Celluvisc 2-3 times a day and see if this resolves the issue. If it does not, get an ophthalmologist appointment and have your eyes examined. My suggestion typically saves a visit to the eye doctor, Regards, XXXXX XXXXX