Migraines headche? Is meds side-effects.

Sir I m from migraine(associated vertigo).. Initially it started in late Aug15.. I fells lot of giddiness.. I had left the food. That time symptom are light headche, nausea, giddiness. That time I was on vertin, betacap, Venlafaxine.then I had taken pregrabalin, clonazepam for 2 months, now I m taking betacap (40mg) / day, and edited (5mg) / day. Now I feels stiffness in neck( morning time), shoulder pain,i have occipital headache starting from base of head...is stiffness is meds side-effects. I had done mri brain, CT scan of head, hrct of temporal bone, CT scan of cervical spine,and blood test like cbc-esr, suger, thyroid, kidney serum, vitamin b12 level. All reports r normal. I had bilateral hearing loss but within a normal limit(21.5db).kidly suggest some remedy, meds, to get rid of this problem. Presently symtom : neck stiffness, little giddiness, some time aura symptoms, pain near temples radiated towards upper head.