welcome to HCM! I have read the question carefully and from my clinical experince I can say that you should get your self examined, the symptoms are either due to migraine headaches or may be blood pressure. -- get your BP checked and treat it if it is raised. --for such severe headaches I find naproxen sodium with domperidone or amlotryptan very effective ( taken as soon as possible when the pain starts). Many time I go for a injection of Voveran &. perinorm for such pain, it gives relief in few minutes. --If the BP is normal, and even with medicine the headache dosent stop, then you should consult a neurologist. One then need to rule out organicity in brain. you have not mentioned, but is there any history of head injury recently? this might be related to your current symptoms. So, please take medicine and get your self checked. Hope the reply is useful get well soon feel free to ask more questions Dr. Manisha Gopal