Migraines with neck/shoulder pain and upset stomach

I have been suffering from migraine since very long. When it started, it used to be gone by third day on its own without any medication.But gradually, the severity, frequency and duration of the my migraine has increased. Normal paracetamols , ipuprofen do not work for me. I used to take Vasograin to stop the throbbing pain but nowadays, it also does not work. My trigger factors have also increased during this course of time. Now, I can feel that any kind of neck or shoulder pain is going to be converted into migraines. I am not sure if there is any spine or nerve related issue. Also, I have always been suffering from nausea, extreme vomiting, upset stomach, indigestion, belching during migraine attacks and vice-versa. So, now I feel that my stomach and migraines attacks are related in some ways. Are these symptoms common in migraine or it is too much for a migraine attack? Please help or suggest if you are facing same problems and what solutions have you found?
P.S.- I have had my MRI, CT scan and Endoscopy for stomach done in previous years. Everything’s normal there.