I Have Been Using Fluticasone Since The End Of May

I have been using fluticasone since the end of May and in the past week I have been experiencing some of the side effects...slight headache (like a tired headache), nausea, and at times, bodily weakness. The weakness could also be attributed to the atorvastatin I take regularly (40mg) but it seems the "weakness" has slightly increased. My question: should I stop using the fluticasone for a while and use it as needed or should it be used regularly?