Strain/pain in neck skull. Or not?

Hi , past 8 to 9 month I am having strain/pain at spin and skull causing sever headache. I will have sever headache and after consultation with doctor and MRI , doctor concluded it as cervical migraine. Doctor has put me on treatment with medicine named as "sibelium". I explored about this pill on internet and could conclude that it's for migraine. I need expert advice here and which is - that, when I was 22 years old I suffered with depression and had to go to psychiatric and who kept me on Toframine along with Syziral. I was going through sever fear, insecurity and phobia during that time phase and these medicine helped me to get ride of that. I tried quiting these pills but that fear still compell me to continue these medicine. Would anyone advise me if I should countinu with sibelium under these circumstances or not ? Thanks in advance !