I Currently Take Buproprion 150 Hcl Sr, BID. I Love

I currently take Buproprion 150 hcl sr, BID. I love the medication, I feel the best me I have ever felt. The downside is i get constant headaches that have not given up. I thought if i tried a different make up of it it would go away but it hasn't. I don't know what to do. Would trying Extended release be an idea or using the name brand? I'm so upset!