It is totally normal to get some pain and abrasions after getting a tattoo, especially when it comes to ankles because ankles have the thinnest skin. But the pain that lingers or gets worse strongly suggests a medical concern. In this case, one should definitely visit a doctor, ideally a dermatologist, in order to exclude or confirm the possibility of infection or an allergic reaction. With your past ankle sprain history, it would be advantageous to talk an orthopedist too, and to watch that the your tattoo is not interfering with the healing process.