Hi, I Just Turned 51. I Have What I Call

Hi, I just turned 51. I have what I call episodes where my upper torso, arms mostly feel sooo heavy and tight that I can't even lift them with some mild shaking in my hands, this can last from 30 sec to over 2 min. Now I'm having issues with raised up with my arm to get something from the cabinet and almost blackout followed by a mild headache.