I feel compelled to post this so maybe it may help someone. I have suffered with Episodic Clusters for 25 year. My most recent attack started 2 months ago. I have been on emgality, verapamil, and divalproex. To break the clusters I went to 150 milligrams of prednisone, stopped taking divalproex, and started lithium. I was unable to break this cycle. As I started to titrate off of the prednisone I became desperate. For 25 years I have drank diet coke and diet pepsi. I stopped drinking diet coke/pepsi and in addition started taking apple cider vinegar with a little bit of honey and water twice a day. After 2 days my headaches stopped. Even my occasional after noon naps I did not wake up with a headache.....Then wanting to have something bubbly I bought a sparking water. My headaches came back! I didn't realize it had sucralose in it. I immediately stopped and my headaches have not come back..I don't want to give anyone false hope but if this can help somebody I would be happy. I back tracked to when my cluster began and realized I used to drink diet coke after playing racquetball. My wife told me how stupid I was drinking a diuretic after working out..I have read somewhere that sucralose and aspartame are not triggers but I don't agree.