There have many reasons for the weird feeling. The first time when I am wearing contact lenses, I also feel weird all the same. The foreign body sensation will make you feel unease. Suddenly, something cover on the surface of eyeball, the eyeball could not get used to it at first. The eyeball has most sensitive feeling among all the organs. Usually, it will take 5 to 7 days to get the habit of contacts wearing. The first day you would better wear contacts less than two hours, and the second day less than 4 hours, then gradually increasing the periods of wearing. One week after that, you will find it is normal to wear contact lenses. But remember please do not wear it more than 8 hours per day finally. If you still find it is hard to adapt such staff, then you can check if you wear it in the opposite side or there has something wrong with your eyes. You may go to doctor for sure!
