While sustenna invega can contribute to headaches, are you on two atypical antipsychotics? Research shows NO benefit to two atypical antipsychotics. Also your anxiety is a separate issue that needs treatment, not likely related to Invega Sustenna.

Headache is not a common side effect of sustena Invega. It is likely that your headache is stress related. You should see an expert in assessing your neck muscles (like me) and ability to treat these (like me).
Good luck!

Yours truly,

Dr. Richard Evan (Rick) Steele