Sprained ankle in dec. had an mri last week. they said it looked normal. but it's still swollen and pops everytime i tilt it. wore a boot for few week?

MRIs not perfect: You may wish a re-evaluation. Although most occult fractures, ligament injuries and osteochondral injuries usually show up on mri, tendon injuries can escape detection. After 5 months we would expect a simple sprain to feel fairly normal. I would suggest another physical examination by a specialist and a repeat MRI if they feel it is warranted.