CT question

Can someone answer a question for me. But first the scenario. Pt seen by primary dx sinusitis after c/o of headache fever purulent nasal discharge. Primary orders ct of head. Shows sinus mucosal thickening primary starts sugmentin. I see pt 2 weeks later still c/o of headache. Pt has glasses not wearing them because I kid you not had thrown up on them 10 days prior and mom had not cleaned them for her. Headaches are frontal, worse at end of school day. I recommend that she start wearing glasses as prescribed and to keep a headache diary. Pt follows up with primary today, she is now wearing glasses has no headache. Primary comes to me after visit wanting to know why I did not order another ct on pt when I saw her. Told me he was ordering a second ct and sending her to neurology. So I guess my question is does 2 ct scans 2 weeks apart sound reasonable. I think it is a little over the top, considering that her sx are now resolved. She has had headaches in the past and a hx of not wearing glasses. Thanks