Why do i sometimes feel like something is crawling on my leg leg when theres no bugs around? i do have high blood pressure and high cholesterol and im on meds for both of them. it dont happen every day, just once in a while so why does it do that?

2 reasons: You are most likely experiencing restless legs syndrome, where you can get that feeling and a need to move your legs specially at night. Another possibility is neuropathy causing abnormal sensations in the leg. There can be many reasons for either of them. Would recommend seeing you doctor and further history and physical including some labs tests will help narrow down the cause.