I'm sorry to hear about another diagnosis - that can be tough! But we have information here to help!
As you now know, it's possible to have more than one type of headache disorder. Many people have responded positively to indomethicin for hemicrania continua or HC. This article may be helfpul; https://migraine.com/living-migraine/another-migraine-look-alike/,
I hope others will be along shortly to share their experiences with you!