Chronic Migraines, Nausea, Vomiting. Taking Maxalt, Phenergan, Vyvanse, Synthroid. Should It Be Serious For Rock Like Material Comming Out Of Stomach?

Question : I am a busy, 40 year old mother of 2, with chronic migraines since childhood that I treat with Maxalt 10mg tablets and phenergan if needed. I currently take 90mg Cymbalta for depression/fibromialgia, 60mg Vyvanse for ADD, and Synthroid for hypothyroidism daily. Last night around midnight, I developed a migraine which didn't go away with my Maxalt. By 7am this morning, I was feeling severe nausea in addition to the head pain, and took 25mg Phenergan orally. About 30 minutes after taking phenergan, I vomited anyway. My concern is that my vomit was pretty forceful / violent and there was no food in my stomach. I vomited mostly clear liquid, then bile, and finally at the very end I vomited up a couple of small rock-like chunks followed by a large rock-like ball. It wasn't like anything I've ever seen before and I hadn't eaten anything that even remotely resembled it. Once that was out of my stomach - around 9:00am this morning, all my symptoms began to get better. Now I am tired, but pain-free and no longer nauseated. Do you think I should be concerned about the rock-like material that came out of my stomach? I saw a couple of posts online that indicated this might be something to worry about. Thank you.