What Causes Burning Sensations Under Skin,itchiness And Dry Skin?

i think i am having some abnormal reactions to amitriptyline i have been on 10mg a night for 9 nights now, i have experienced an increase in GERD activity, wierd skin sensations, itchy dry skin, bruising on legs, wierd breathing patterns, feeling of burning sensation under my skin dont know whether to continue taking them or stop now and see Dr. it has been prescribed for anxiety and migraine control